While continueing my research for my new book I found this book at a library book sale for $1.50. It had been withdrawn.
Barbarossa The Russian-German Conflict 1941-45
By Alan Clark
Copyright © 1965 By Alan Clark
Published by William Morrow and Company, New York
B/W photos and maps
This book is great. It breaks down the entire invasion of the Soviet Union by Germany without the information overload of some books I've struggled through. Even so, it has detailed information about each stage of the operation. It's a good book that I can recommend to anyone who wants to understand the war in Russia.