Laurie Wallmark

Offers an illustrated telling of the story of Ada Byron Lovelace, from her early creative fascination with mathematics and science and her devastating bout with measles, to the ground-breaking algorithm she wrote for Charles Babbage's analytical engine.

Ada Byron Lovelace and the Thinking Machine

To her adoring public, Hedy Lamarr was a glamorous movie star. But in private, she was something more: a brilliant inventor. Now Laurie Wallmark and Katy Wu, who collaborated on Sterling's critically acclaimed picture-book biography Grace Hopper: Queen of Computer Code, tell the inspiring story of how, during World War Two, Lamarr developed a groundbreaking communications system that still remains essential to the security of today's technology.

Hedy Lamarr's Double Life

Decode the story of Elizebeth Friedman, the cryptologist who took down gangsters and Nazi spies In this picture book biography, young readers will learn all about Elizebeth Friedman (1892-1980), a brilliant American code breaker who smashed Nazi spy rings, took down gangsters, and created the CIA's first cryptology unit. Her story came to light when her secret papers were finally declassified in 2015. From thwarting notorious rumrunners with only paper and pencil to "counter-spying into the minds and activities of" Nazis, Elizebeth held a pivotal role in the early days of US cryptology. No code was too challenging for her to crack, and Elizebeth's work undoubtedly saved thousands of lives. Extensive back matter includes explanations of codes and ciphers, further information on cryptology, a bibliography, a timeline of Elizebeth's life, plus secret messages for young readers to decode.

How Elizebeth Friedman Changed the Course of Two World Wars

Code Breaker, Spy Hunter

This is a children's book biography of Grace Hopper, who played a prominent role in the early days of computers.--

Queen of Computer Code

Grace Hopper

This is the true story of how Judit Polgár captivated the world as she battled to become the youngest chess grandmaster in history! The queen of chess, Judit Polgár, dazzled the world as a prodigy, winning tournaments, gold medals, and defeating eleven world champions, including Garry Kasparov and Magnus Carlsen. At her peak, Judit was rated the eighth best chess player in the world. But before these tremendous successes, Judit burst onto the chess scene as a ferocious, child competitor. Beating adults by five-years-old, and winning international tournaments by age nine, Judit was destined for greatness. Follow her incredible journey as she strives for chess immortality, hunting to become the youngest chess grandmaster in history.

How Judit Polgár Changed the Game

The Queen of Chess

Sophie Kowalevski was both a brilliant mathematician and a talented writer. Creative work nurtured her mathematical research, giving her a flexibility of thought she treasured. A wonderful STEAM figure, she not only did mathematical research, but she also created many literary works. This inspiring title tells the story of Sophie's journey as the first woman to receive a doctorate in mathematics, which required original research, holding a university chair in mathematics, and becoming the editor of a major scientific journal.

Sophie Kowalevski, Queen of Mathematics

Numbers in Motion

Join the dinos for a bash before bedtime! Much like us, dinosaurs love to have fun. Dinosaurs from all around gather together to play instruments, dance, and sing before bedtime. But soon the dinosaurs grow tired and need their rest. This is a book that's sure to have kids following the dinos' lead as they get ready to go to sleep.

A Bedtime Book

Dino Pajama Party

Decode the story of Elizebeth Friedman, the cryptologist who took down gangsters and Nazi spies In this picture book biography, young readers will learn all about Elizebeth Friedman (1892–1980), a brilliant American code breaker who smashed Nazi spy rings, took down gangsters, and created the CIA's first cryptology unit. Her story came to light when her secret papers were finally declassified in 2015. From thwarting notorious rumrunners with only paper and pencil to “counter-spying into the minds and activities of” Nazis, Elizebeth held a pivotal role in the early days of US cryptology. No code was too challenging for her to crack, and Elizebeth’s work undoubtedly saved thousands of lives. Extensive back matter includes explanations of codes and ciphers, further information on cryptology, a bibliography, a timeline of Elizebeth’s life, plus secret messages for young readers to decode.

Laurie Wallmark

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