Ada Byron Lovelace and the Thinking Machine

Wallmark makes her children's book debut with an inspiring and informative account of 19th-century mathematician Lovelace, who is considered to be the world's first computer programmer. Lovelace's mathematical passions are evident from the first pages, as Chu shows the infant in a bassinet, reaching for a mobile of stars and numbers (she's adjoined by her mother, whose own interests earned her the nickname "The Princess of Parallelograms," and her father, poet Lord Byron). Wallmark moves swiftly through Lovelace's life, facing obstacles that included a bout of measles that temporarily left her blind and paralyzed, as well as societal attitudes toward women in the sciences. Lovelace found a kindred spirit in inventor Charles Babbage, eventually creating "the world's first computer program" for his Analytical Machine. Chu brings the same grace and precision to this book as she did to In a Village by the Sea, and her finely detailed pencilwork is ideally suited to the schematics, blueprints, and mechanical implements that surround Lovelace and Babbage as they work, not to mention the stately apparel and architecture of their Victorian surroundings. Ages 5-up. (Oct.)

Gr 1-4--This well-written and handsomely illustrated picture book biography details how Ada Lovelace Byron was able to write the first computer program more than 100 years before the first computer was built. Ever since she was a young girl, Lovelace was fascinated by numbers. As she was growing up, she filled her journals with ideas for inventions and equations. Her mother provided tutors to further develop Lovelace's passion for mathematics. When one of these tutors invited Lovelace and her mother to a gathering of scientists, she met the famous mathematician and inventor Charles Babbage. He was so impressed by Lovelace's knowledge that he invited her to his laboratory, where she learned about his idea for an Analytical Engine, a mechanical computer that would solve difficult problems by working them through step-by-step. She realized that this "computer" would only work if it were provided with detailed instructions, and after much work, she succeeded in writing what is now referred to as the first computer program and in creating the profession of computer programming. The descriptive text and dazzling spreads work seamlessly to provide a sense of Lovelace's growing passion for mathematics and invention. The illustrations reflect the 19th-century setting and contain numerous supporting details. For example, gears that will eventually become part of the design of the Analytic Engine are featured throughout: in the corners of the title page, on the pages of Ada's journals, and on Babbage's chalkboard. VERDICT An excellent addition to STEM collections.--Myra Zarnowski, City University of New York