Alan Turing grew up in England in the early 1900s, where his best friends were numbers and a little boy called Christopher. When his young friend died, Alan retreated to the world of numbers and codes. During World War II, he discovered how to crack the code of the Nazi Enigma machine. This book features illustrations and extra facts at the back, including a biographical timeline with historical photos and a detailed profile of the brilliant mathematician's life.
juvenile
written by Maria Isabel Sánchez Vegara ; illustrated by Ashling Lindsay.
