Posts Tagged book lists

STEM Tuesday– Cryptography (Math)/Spy Science– Author Candace Fleming

Welcome to STEM Tuesday: Author Interview, a repeating feature for the last Tuesday of every month. Go Science-Tech-Engineering-Math!

Today we’re interviewing Candace Fleming, author of The Enigma Girls: How Ten Teenagers Broke Ciphers, Kept Secrets, and Helped Win World War II It’s a fascinating look at the British effort to defeat a Nazi invasion by breaking their military codes. The staff were mostly female, and most of those women were teenage girls. The book is garnering a lot of attention and starred reviews.

“In this absorbing book, Fleming approaches the subject by telling the individual stories of 10 young women… who left their homes to work secretly on projects related to the German military’s Enigma cipher machine. Even readers with little interest in codes and ciphers will find the women’s experiences intriguing.” — Booklist Review (starred)

 

CTB: Hi Candace. Welcome to STEM Tuesday. My first question: Did you always want to be a writer?

Candace: Yes, I’ve always been a writer. But I also wanted to be an archeologist, flight attendant and other things. In college I got a degree in American History.

I worked at the Chicago Historical Society after graduation, but when my second child was born with a health concern I retired. “What do I do now?” I asked myself. I thought – writing! And I started by writing my life for magazines: Parents Magazine, American Baby, Pediatrics for Parents, etc.  “Seven Nap time Strategies,” is one example of an article I sold. My sons, Scott and Michael are in their early 30’s now. So… I’ve been writing for a long time.

CTB: That’s quite a career change.

Candace:  It was. My then-husband and I were young and had never consider the possibility of having a sick child. I was working to buy paint so I could spruce up the bathroom or buy new curtains for the bedroom. Yes, I ended up with some home décor. But, more importantly, I completed an apprenticeship (although I didn’t notice it at the time). I learned to work with an editor and meet a deadline. I learned how to interview people.

I switched to writing for children when I started reading picture books to my own sons. I couldn’t get enough of them. We’d come home from the library with a BIG stack and start reading. At bedtime, it’d be my boys crying, “Please, mommy, turn off the light!” and me begging to read, “just one more.”

Of course, what I was really doing was discovering the bones and music picture books. Eventually, I thought I would write one of my own. I sent it in through the slush pile and an editor at Simon and Schuster found and bought it.”

CTB: What gave you the idea for The Enigma Girls?

The Enigma Girls CoverCandace: I’m endlessly curious. I had just seen the Bletchley series on television. So during a trip with friends to London, I went out to Bletchley Park. I’d assumed the place was small and secret, you know, an exclusive gathering of the most brilliant, scientific minds. Once I got there, I discovered that there were over 9,000 workers. It’s mind boggling given how small the area is. More mind boggling? 80% of these workers were female and most of these were young teenagers.

The teens weren’t code breakers in the expected way. They weren’t sitting around a table trying to find cribs. One girl might be indexing information. Another might be operating a typex machine, or a bombe or Colossus. They were cogs on the assembly line of a cypher breaking factory, which is essentially what Bletchley Park was.

Each girl had her own job. She didn’t know what other women were doing. That included the women they sat near, or had lunch with, or roomed with. Most didn’t even know they were breaking enigma ciphers until the 1980’s. Before that they weren’t allowed to discuss their work with anyone, not even with their co-workers.

Enigma womenCTB: But they were girls. That’s not something we would see in military programs today.

Candace.  Exactly! I thought, “Wow! Teenage girls!” And how astonishing that everything happening was top secret and that the girls never told anyone they’d worked there. Even when they got married, they never told their husbands. They’d signed the Official Secrets Act, you see, and they took that very seriously.

CTB: The girls were told to describe their jobs as “clerical work.”

Candace: That’s right. They basically lied about what they were doing, both during the war and for decades after. They could even tell people they’d worked at Bletchley Park, codenamed Station X. It was all very hush-hush. Some of the girls would receive letters when they were recruited that read:

“You are to report to Station X at Bletchley Park, Buckinghamshire, 
in four days time.…That is all you need to know.”

CTB: The work had an enormous impact on the war effort.

Candace: Yes. It is believed that the girls’ consistent hard work shortened the war by about 2 years. Think how many lives that saved! Think of the generations here today because of them. No, they were the Alan Turing’s or other big names in cryptography. They were ordinary girls. Some hated the work. It was slogging work, and often repetitious. Even so, they knew they were doing something important for the war effort, even if they didn’t exactly what that was.

And they were still kids, you know? Teenagers. They lacked the sophistication of modern teens. Many still lived at home before being summoned to BP. Others were still in school. Many had never traveled from their small towns. And while they did their jobs admirably, they were still so young. They played pranks and joked. They were high-spirited and goofy sometimes.

CTB: So what was the Enigma machine?

Enigma gearsCandace: The machine was used by the German military to send encrypted messages to the troops. It looks like a typewriter with keys for letters, but those keys were actually connected to a lamp board in the rear. And there were gears that were adjusted or replaced every day. The German sender and receivers were sent instructions for how to set them up each day. That allowed them to send and decipher codes. It was the British intention to decipher those codes as well.

CTB: But the codes changed every day.

Candace: That is what made things so difficult. The enigma machine created a sophisticated alphabet cipher. The soldier would type a letter on the machine, but gears would translate it to a different letter. The person on the other end would have a similar machine and if set correctly, would allow them decipher the code one letter at a time. The people at Bletchley Park had to determine the new ciphers each day. There were more than 159 quintillion possible combinations. I wanted readers to understand how hard the codes were to break

CTB: With word counts and project requirements, there is never enough space for everything. Where there stories of girls that didn’t make it into the book?

Candace: Because I wanted to pick young women from all classes of society, as well as for each job, I ended up setting aside some terrific human stories. Take, Muriel Dindol, for example. She quit school at the age of fourteen because, she claimed, it bored her. Her parents lived in the town of Bletchley, and Muriel found a job at Station X as a messenger. This meant she spent her shifts delivering top secret messages to various departments. Of course, she didn’t know they were top secret. She also claimed she wasn’t curious about what was inside the manilla envelopes she carried. She’s wanted to work at BP because the older girls going in and out of the place seemed glamorous to her. “I wasn’t interested in war work,” she said, “but I wanted money for makeup.” Muriel left behind her recipe for lipstick. I wouldn’t recommend you try it.

CTB: With all of your experience, what advice would you give to a young reader who wants to be a writer?

Candace: Oh. That’s a good question. Here’s some thoughts:

  • Writing is meant to be fun.
  • You don’t have to finish – not everything is as project
  • You don’t have to write from start to finish

I still write by hand with a blue Bic pen. It’s a reminder that the work is not precious. I can ball it up or scratch it out. Also, I like the smell of the pen. I’ve been using it all of my life, and its smell tells my brain “we are writing.” Sometimes the bottom of my arm is covered in blue ink from rubbing against the paper as I write.

So many kids think that writing has to be neat. It doesn’t have to be anything. Also, I hear readers tell me they have writer’s block. They have this idea that one should write from story’s beginning straight through to its end. Truthfully? I don’t know anyone who writes that way. Most skip around and write what you they know. They go back and fill in the blanks.

That’s why I like loose leaf paper. It’s intentionally messy. Sure, by the second draft I use Word. I edit on my laptop. But I always, always write by hand the first time around – both big and small projects.

CTB: What are you working on next? Anything we should be looking for?

Candace: I’m finishing a book tentatively titled Rhino Country. It’s about rhino poaching. I went to South Africa and spent 4 weeks with rangers and conservationist. I also completed a week-long wildlife forensics class alongside anti-poaching units from all across South Africa, and I worked at a rhino orphanage, helping to care for the babies orphaned by poaching. Honestly, I left my heart there.

Death in Jungle coverI’ve also written Death in the Jungle: Murder, Betrayal and the Lost Dream of Jonestown for Anne Schwartz Books/ Random House. It’s about the Peoples Temple movement. It’s coming out in April 2025. It’s YA nonfiction and very dear to my heart, because of the extraordinary people who shared their stories with me. There’s a real bravery to being that honest. While the story of Peoples Temple serves as a cautionary tale, it is also a very human one.

“Young people are bound to recognize themselves in the idealism of Annie Moore; the rebelliousness of Tommy Bogue; the love/hate feelings harbored by the teenaged Stephan Jones for his father.”

Candace Fleming in an article at San Diego State University.

 

Fleming book covers

*****

 

C FlemingCandace Fleming is the author of more than fifty books for children and young adults, including the 2021 Sibert Medal-winning Honeybee: The Busy Life of Apis Mellifera, as well as the 2021 YALSA Excellence in Nonfiction Award-winning The Rise and Fall of Charles Lindbergh. A recipient of the Los Angeles Times Book Prize, she is also the two-time winner of both the Boston Globe/Horn Book Award, and the Sibert Honor. Her most recent titles are The Enigma Girls and Narwhal, Unicorn of the Arctic.
Candace is married to award winning illustrator, Eric Rohhman.
author christine Taylor-butler

Photo by Kecia Stovall

Today our host is Christine Taylor-Butler, a graduate of MIT and author of The Oasis, Save the… Tigers, Save the . . . Blue Whales, and many other nonfiction books for kids. She is also the author of the STEM based middle grade sci-fi series The Lost Tribes. Follow @ChristineTB on X and/or @ChristineTaylorButler on Instagram, and @ctaylorbutler on Bluesky. She lives in Missouri with her family, a tank of fish and cats that think they are dogs.

 

Heists, Hijinks, and Hardboiled Heroes: Misadventures in Middle Grade

One of the fun things about middle grade books is that they possess the capacity to reflect the adult world on a smaller scale, mimicking and evoking the tropes of other genres without missing a beat. You can have your hardboiled private detectives, your intrepid journalists, your tarnished white knights. You can have your criminal masterminds, menacing henchmen, and slick con artists. The only difference is, they’re tweens and their playground is quite literally the school playground. But all the passions, foibles, dreams and disappointments can be found here … just don’t get caught by the principal!  Read on for a selection of old and new books which expertly capture the dark side of middle school.

The Big Splash by Jack D. Ferraiolo

Hardboiled loner Matt Stevens winds up entangled in the dark and dastardly schemes of a middle school crime syndicate, facing off against hitmen armed with water pistols, in this cool, stylish, and snappy callback to classic noir.  Though set firmly in the world of seventh- and eight-grade, this serious plays its tropes and themes seriously, from the wise-cracking, world-weary hero to the ruthless crime lord, from the complicated yet lovely femme fatale to the corrupt authorities. A sequel, The Quick Fix, saw Matt investigating who blackmailed the school basketball star.

High Score by Destiny Howell

Seventh-grade mastermind DJ has called it quits to schemes and cons, doing his best to lay low in a new school. Then his former partner and best friend Conor shows up, and winds up on the wrong side of the school’s criminal kingpin. To cancel out Conor’s debt and save him from becoming a social pariah, DJ has to assemble a new crew and acquire an astronomical amount of arcade tickets. It looks like he’s back in the game after all. Fast-paced, funny, and clever, this middle grade heist is as daring as any Danny Ocean might conceive. Followed by Second To None, in which DJ’s crew deals with a conspiracy aimed at taking down the school’s high achievers and club leaders.

 

The Great Green Heist by Varian Johnson

Another instance of a mastermind being recalled to a life of intrigue and danger, this political thriller sees Jackson Greene, reformed con man, pulling together a team of specialized operatives to swing the school presidential election. There’s nothing quite like the reluctant anti-hero ripped from a peaceful life and torn between friendship and honor. This is followed by To Catch a Cheat, in which Jackson and friends must clear their names after being framed by outwitting a devious blackmailer. “Just when I thought I was out, they pulled me back in,” to quote the Godfather movies…

 

The Cookie Crumbles by Tracy Badua and Alechia Dow

Talented baker Laila and her best friend, aspiring journalist Lucy, are excited to participate in the Golden Cookie Competition, especially since winning could determine their future in high school together. Before the final round, they must contend with sabotage, foul play, and the poisoning of one of the judges. In this cozy yet tense mystery, the recipe for success involves friendship, chocolate, and a healthy dose of danger. To be followed in 2025 by Their Just Desserts, another tasty mystery set against a baking competition.

 

The Sherlock Society by James Ponti

The Sherlock siblings—Alex and Zoe–, along with their friends Lina and Yadi, set out to form their own detective agency, only to discover it’s not as easy as it seems. Assisted by their grandfather, a retired reporter with a collection of cold cases, the Sherlocks launch a hunt for Al Capone’s lost treasure, only to stumble across more contemporary crimes in need of solving. With this delightfully intelligent, fast-paced tale, Ponti evokes classic juvenile sleuths while giving them a modern day makeover.

 

Bubblegum Shoes: The Case of the Contraband Closet by Goldy Moldavsky

In this clever mystery coming out next year, would be private detective Maya Mendoza has a nose for intrigue, a knack for getting in trouble, and a reputation for missing the mark. But when someone pulls off the heist of the century by emptying her school’s “Contraband Closet” of all its treasures, Maya has to enlist her estranged best friend and several new allies to solve the case. The clock is ticking and everyone is a suspect in this snappy, suspenseful series opener.

 

And there you go, a selection of hardboiled heroes, reluctantly reformed con men, and amateur investigators, all ready to see justice satisfied one way or another. Now if only they could solve the mystery of where I left the remote…

 

 

 

STEM Tuesday– Spy Science and Cryptography– Book List

From ancient ciphers to modern-day digital encryption techniques, this month’s book list explores the science, technology, engineering, and math that make code-making (and code-breaking) possible.

 

 

 

 

The Enigma Girls written by Candace Fleming

It all began with a letter in an unmarked envelope received by ten teenage girls. It was World War II, and the British were desperate to break the German Enigma code. Instead of turning to cryptographers, these women were responsible for Bletchley Park, a well-kept secret operating under the code name Station X. Award winning author Candace Fleming spins an engaging narrative based on true facts.

 

 

Unbreakable: The Spies Who Cracked the Nazis’ Secret Code by Rebecca Barone

Rebecca Barone jumps across the European continent to trace the history of the Enigma machine, an encryption device invented by the Germans and thought to be unbreakable. Barone highlights the international collaboration among Polish, French, and British spies and codebreakers that made it possible to break the Enigma cipher and secure victory for the Allies during World War II. This well-researched nonfiction book reads like a spy novel, and readers will be riveted from the first page to the last.

 

 

Can You Crack the Code?  written by Ella Schwartz and illustrated by Lily Williams

This book focuses on the history of ciphers and codes. It’s well laid out with great illustrations and would be a great fit for aspiring cryptographers and anyone who loves secret codes, ciphers, and puzzles. It includes historical stories and explanations on how letters, numbers, and symbols can translate into understandable text. The book also features sample codes to solve yourself and resources at the end.

 

 

Create Your Own Secret Language written by David J. Peterson and illustrated by Ryan Goldsberry

This how-to book will help children learn how to create their own secret language, codes, ciphers, and hidden messages. David J. Peterson is an expert language creator who invented languages for Game of Thrones, the Marvel Universe, and more. KIds can learn how to communicate in secret whether it’s written, drawn, or spoken. The illustrations are especially useful.

 

 

 

Code Cracking for Kids by Jean Daigneau

Another essential volume about codes and ciphers, this book provides a comprehensive history of “secret writing,” from hieroglyphics and invisible ink to ciphers, bar codes, and semaphores. Sprinkled throughout the text are instructions for 21 hands-on activities that give aspiring cryptologists a chance to try their hand at making and breaking their own codes.

 

 

CodeBreakers by DK Publishing

This book provides an overview of the greatest code makers and code-breakers in history through easy to read stories to engage young readers. Examples are deciphering the Rosetta Stone and cracking the Enigma code during World War II. The book includes a reference section with key facts, timelines, and a glossary of terms. It’s easy to navigate with eye popping illustrations.

 

 

Tales of the Mighty Code Talkers by Lee Francis IV, Roy Boney Jr., Arigon Starr, Jonathan Nelson, Renee Nejo, and Lee Francis III

Created by six Native American authors and illustrators, this fascinating graphic novel tells the history of Native American code talkers in the United States military. While the Navajo code talkers of World War II are the best known, this book sheds light on the many other tribes who served in Navy, Army, and Marines, beginning with the Cherokee and Choctaw during World War I. Because tribal languages were not based in Latin or written down, they became the basis for an unbreakable code that led to victories in both world wars. This book is a must-read for anyone interested in codes and cryptography!

 

 

Top Secret: Spies, Codes, Capers, Gadgets, and Classified Cases Revisited by Crispin Boyer

This book is essentially a kid-focused encyclopedia covering a slew of interesting and historical information in a fun and creative way, from Egyptian hieroglyphics to gaming nomenclature. Young readers will learn tricks of the spy trade, get the scoop behind sleuthing, and discover all kinds of skills, like how ninjas walked on water. The texts are easy to read and are paired with engaging pictures and illustrations.

 

 

 

How to Be an International Spy by Andy Briggs

Structured as a training manual for wannabe spies, this engaging book contains factoids about intelligence agencies around the world, demystifies the lingo used in espionage, and features profiles of real spies from history. There are extensive sections devoted to cryptography, digital espionage and cybersecurity, high-tech tools (including instructions for how to make your own), and even tips and tricks for conducting surveillance and going off the grid.

 

 

 

Top Secret Science: Projects You’re Not Supposed to Know About by Jennifer Swanson

Scientists have been on the front lines of secret projects throughout history, from encryption to weapons development to human experimentation. Part of the Scary Science series, the six short chapters in this easy-to-read book introduce readers to the Manhattan Project, Operation Vegetarian, Nazi experimentation, and more.

 

 

 

This month’s STEM Tuesday book list was prepared by:

Author Lydia Lukidis

 

Lydia Lukidis is an award-winning author of 50+ trade and educational books for children. Her titles include DANCING THROUGH SPACE: Dr. Mae Jemison Soars to New Heights (Albert Whitman, 2024), DEEP, DEEP, DOWN: The Secret Underwater Poetry of the Mariana Trench (Capstone, 2023), which is a Crystal Kite winner, Forest of Reading Silver Birch Express Honor, and Cybils Award nominee. A science enthusiast from a young age, she now incorporates her studies in science and her everlasting curiosity into her books. Another passion of hers is fostering a love for children’s literacy through the writing workshops she regularly offers in elementary schools across Quebec with the Culture in the Schools program. For more information, please visit www.lydialukidis.com.

 

author Callie Dean

 

Callie Dean is a researcher, writer, and musician living in Shreveport, LA. She writes stories that spark curiosity and encourage kids to explore their world. Her first picture book will be published in 2026. For more information, please visit https://calliebdean.com.