New Biography on Gordon Welchman

For anyone who wants to learn more about Bletchley Park and the genius Gordon Welchman there's a new biography out about him!
http://www.pen-and-sword.co.uk/Gordon-Welchman/p/4192/

The author Joel Greenburg helped us out a great deal with our research for 'That is All You Need to Know' - trust us - he knows what he's talking about!