This is a rather lengthy compendium of alternate histories.
There are some 21 stories here ranging from rather short to almost novella length. The scope is broad (not just "what happened if German won WW2?") and for the most part they're quite interesting. Of course in any collection of stories like this there are always a couple that didn't work for me, but that's the beauty of a collection like this--if it's not working for you just move on to the next. My particular favorites were "The Twenty Year Reich" and "A.E.I.O.U"....they both took and interesting premise and really ran with it.
Recommended for any fan of alternate and speculative histories; I like it quite a bit even with the couple of duds.