Ada Lovelace's brilliant talent for mathematics and huge imagination helped to pave the way for the invention of the computer software that powers the world around us. Every time you play a computer game or talk with a friend on your smartphone, you can only do so because of the pioneering work by Ada Lovelace.

Her work was groundbreaking. Unlike her poet father Lord Byron, she was not a famous figure during her lifetime. However, she became known to those who knew her as the "enchantress of numbers." This book tells Ada's story.