About the Holiday
Gender equality around the world has always been a core issue for the United Nations. As such, on December 22, 2015 the United Nations General Assembly established an International Day to recognize the critical role women and girls play in science and technology. This year’s theme is “Equity, Diversity, and Inclusion: Water Unites Us.” As described in UN reports, by 2030 “billions of people around the world will be unable to access safely managed household drinking water, sanitation, and hygiene services unless access progress rates quadruple. Rising demand, poor management, and failure to conserve water resources, compounded by climate change, represent key challenges, urgently requiring a new sustainable holistic approach to support aligning strategies on water.”
Today’s celebration will bring together women in science and experts from around the world and government officials as well as representatives of international organizations and the private sector to discuss the importance of water in achieving the three pillars of sustainable development – economic prosperity, social justice, and environmental integrity. The program will also feature, for the first time, a unique Ebru Water Art Performance to celebrate the 7th Anniversary of the #February11 Global Movement. To access the virtual assembly, visit womeninscienceday.org. To learn more about today’s initiative as well as videos about past observances, visit the UN website.
Thanks to Abrams Books for Young Readers and Blue Slip Media for sending me a copy of Code Breaker, Spy Hunter for review consideration. All opinions of the book are my own. I’m excited to be teaming with them for a giveaway of the book. See details below.
Code Breaker, Spy Hunter: How Elizebeth Friedman Changed the Course of Two World Wars
Written by Laurie Wallmark | Illustrated by Brooke Smart
In Code Breaker, Spy Hunter, readers open the cover to an intriguing question: “Could it be? Had enemy spies sneaked into the United States?” World War II was raging, but the United States had not yet joined the effort. And yet the “FBI had intercepted hundreds of coded messages from a secret base in New York.” The problem was no one could read them. Who did the FBI turn to? Elizebeth Smith Friedman, who broke the codes, discovered a cadre of Nazi spies, and provided the evidence “to send thirty-three German spies to prison.” Who was Elizebeth Friedman? Children are about to find out!

Image copyright Brooke Smart, 2021, text copyright Laurie Wallmark, 2021. Courtesy of Abrams Books for Young Readers.
As a child, Elizebeth loved poetry and especially the work of William Shakespeare, with its structure and patterns. In college, she studied English literature, Latin, Greek, and German. While looking for a job in Chicago in 1916, she met the eccentric George Fabyan, who was trying to prove that Francis Bacon was the true writer of Shakespeare’s plays. He hired Elizebeth to “find secret messages Bacon had supposedly hidden in the plays. But the more she explored the plays, the more convinced she became that there were no hidden messages.”
Elizebeth shared her thoughts with a friend, William Friedman, who also loved puzzles and secret codes. Over a year’s time, their discussions resulted in a stronger friendship and finally marriage. In 1917, the US entered World War I and Fabyan asked Elizebeth and William to establish “the country’s first code-breaking unit, the Riverbank Department of Cyphers…. Their methods are now considered the basis for the modern science of cryptology, the study of secret codes.”

Image copyright Brooke Smart, 2021, text copyright Laurie Wallmark, 2021. Courtesy of Abrams Books for Young Readers.
In 1921, Elizebeth and William moved to Washington D.C., where they worked as code breakers for the Army. At the time, the Army used a large, cumbersome machine to convert messages into code, which precluded soldiers in the field from sending intelligence back. Elizebeth and William invented a complex code that used “only pencil and paper.” After the war, Elizebeth settled down to write books and raise a family, but still the entreaties came to decode messages for court cases sometimes thousands of miles away.
In 1925 with Prohibition the law of the land, smugglers were running rampant. The Coast Guard summoned her, and within three months Elizebeth had cracked “two years of backlogged messages.” Her work and court testimony that helped to convict smugglers made Elizebeth a recognized expert in the new field of cryptology, and when the work became overwhelming for just two people, she created the Coast Guard’s first code-breaking unit.
With the entry of the US in World War II, Elizebeth’s expertise was once again needed. Again, she needed to create a code-breaking unit, and in 1942 she hired and taught “mathematicians, physicists, and chemists” the skills of cryptology. Now, Elizebeth’s team was learning important war information about the Nazi’s movements and plans. When the FBI director wanted to nab the spies, Elizebeth recommended waiting “until the military could learn more of the enemy’s secrets.” But he disagreed and raided their hiding place. The spies that escaped quickly changed their codes, making their communications harder to decipher. The FBI director took all the credit for breaking the codes and catching the spies.

Image copyright Brooke Smart, 2021, text copyright Laurie Wallmark, 2021. Courtesy of Abrams Books for Young Readers.
As the war progressed, Elizebeth helped capture an American spy working for the Japanese, and when the Germans developed Enigma, a powerful code-making machine that could “create billions of different cipher alphabets, it was Elizebeth’s team that broke the code for the United States. In Allied countries around the world, other cryptologists were also decrypting Enigma messages. The Nazis were now at a disadvantage, their planned attacks thwarted. Historians believe the work of these code breakers “saved thousands of lives and shortened the war by many years.”
Throughout her life Elizebeth could not speak a word about her work, even to her family. It was classified as Top Secret Ultra by the government and kept locked in the National Archives. At last, in 2015, Elizebeth’s work was declassified. “She is now considered one of the most gifted and influential code breakers of all time.”

Image copyright Brooke Smart, 2021, text copyright Laurie Wallmark, 2021. Courtesy of Abrams Books for Young Readers.
Compelling and wonderfully detailed, Laurie Wallmark’s biography of Elizebeth Friedman immerses children in the world of war-time spies, where cracking codes equaled saved lives and battles won. Wallmark’s storytelling of Elizabeth’s trajectory from Shakespeare scholar to ultra-secret code cracker reads like a thriller and is sprinkled throughout with quotes from Elizebeth that give kids a sense of her personality and the demands of her career. By including several cases Elizebeth was instrumental in solving, Wallmark provides readers with historical context on the broad range of nefarious activity that relied on secret codes to inform their knowledge of today’s uses of encryption as well as international spy networks. Each page is a celebration of Elizebeth’s talent, intelligence, and accomplishments, and her incredible story will enthrall readers.
Brooke Smart’s watercolor and gouache illustrations offer enticing glimpses into the past while following Elizebeth as she meets George Fabyon who shows her around his museum-like house while carrying a small monkey on his shoulder, establishes the United States’ first code-breaking unit, testifies in court, and thwarts the Nazis’ war plans. Interspersed with Smart’s realistic depictions of Elizebeth’s life are images in which lines of coded messages snake across the page, giving readers a look at the kinds of unreadable text Elizebeth and her teams cracked. In addition to presenting a visual representation of the tangled communications that eventually nabbed our enemies, two of these clever illustrations contain messages of their own.
A superlative biography that would enhance any history, social studies, language arts, or STEM curriculum as well as captivate kids who love spy, military, and detective stories, Code Breaker, Spy Hunter: How Elizebeth Friedman Changed the Course of Two World Wars is highly recommended for home bookshelves and is a must for school and library collections.
Ages 7 – 11
Abrams Books for Young Readers, 2021 | ISBN 978-1419739637
Discover more about Laurie Wallmark and her books on her website.
To learn more about Brooke Smart, her books, and her art, visit her website.
International Women and Girls in Science Day Activity
Send a Secret Message
Would you like to be a code breaker – or a spy? Get started with this Pigpen Cipher that makes sending secret messages to friends, siblings, and other family easy and fun. This ancient code is called the Pigpen Cipher because each letter is in its own “pen.” Use it as originally developed then try mixing the letters and pens to create new codes.
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