Here is what I have on the subject: Bir Hakim Desert Citadel by Richard Holmes (the French side of things),The Imperial War Museum Book of the Desert War 1940 - 1942 by Adrian Gilbert, Desert Rats at War by George Forty, The Campaign for North Africa by Jack Coggins, The Long Range Desert Group 1940-1945 by Robin Jenner and David List. Also the Illustrated World War II Encyclopedia is a good reference for the entire period. I found most of these books at used book stores.