Alan Turing appears as a character in the book, popping up with extra word problems or secret codes to challenge readers to think a little bit harder. A brief biography of the real Alan Turing is included, to give readers more information about this remarkable man.

Sales of this book support the work of The Turing Trust, the charity set up by Alan's family in his memory to provide much-needed computers to schools in Africa.

Guaranteed to provide hours of entertainment for children aged 7+.