This book is an excellent collection of papers covering a major part of Alan Turing´s contribution to computer development. Contrary to the title, only the invention of a “universal computing machine” and its implementation as the ACE machine is covered. The detailed calculation and schematics of individual parts of the machine brings us into the mystery of computing at end of the Second World War and provides the reader with a complete picture of the time of the “computer pioneers”. The concentration of the editor on the ACE machine unfortunately leaves other important contributions of Alan Turing (e.g. the Colossus machine and his artificial intelligence papers) uncovered. Nevertheless the amount of information collected by the editor is huge and it offers interesting reading for anybody with a deep interest in computer history.