The New York Times bestselling author of Mrs. Lincoln's Dressmaker and Switchboard Soldiers illuminates the life of Ada Byron King, Countess of Lovelace—Lord Byron’s daughter and the world’s first computer programmer.

The only legitimate child of Lord Byron, the most brilliant, revered, and scandalous of the Romantic poets, Ada was destined for fame long before her birth. But her...

Publisher Annotation: National Book Award finalist Laura Ruby returns with the middle chapter in her epic alternate-history adventure?a journey that will test Tess, Theo, and Jaime and change their lives forever.

Learn about the history of electricity from Benjamin Franklin to Nikola Tesla.

Nick and Tesla, 12-year-old siblings build four different droids to catch the criminals of Half Moon Bay.

"The Queen's Gambit meets The Alice Network in this epic, action-packed novel of family, loss, and one woman's journey to save all she holds dear—including freedom itself." —Kristin Harmel, New York Times bestselling author of The Forest of Vanishing Stars

From the New York Times bestselling author of Sold on a Monday—over a million copies sold—comes a sweeping World War II tale of an illusionist whose recruitment

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As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth,...

A biography of the young Philadelphia printer who became a famous author, scientist, and inventor.

When Maxine's school puts on a pet parade, she creates a unique contraption to allow her very special pet fish, Milton, to participate.

Thomas Edison invented the electric light bulb and much more.