These were three booklets collecting the better articles on various Avalon Hill games in one place. It started with Don Greenwood self-publishing a collection of articles on Stalingrad. Then in 1972 he and Guidon Games teamed up to release two new booklets, as well as a revised edition of the original.
Articles were taken from The Avalon Hill General, (Greenwood-era) Panzerfaust, The International Wargamer, and The Spartan.