(Subtitle: "An Encyclopedia of Warfare from Megiddo to Waterloo.")
I was in a Books-A-Million yesterday and found this book in their bargain set. It's a large format roughly 9" x 11" with illustrations throughout (some period art, some later artists) and in many cases an illustration of the battle with isometric view of terrain and general force placement and movements. Marked down to $7 USD, so what the hey? I always like decent depictions of historical battles, and given my preference for grand tactical play, I figured this would be a good source of inspiration.
I've only skimmed it, but the art is nice and the text appears clear. More of a lay person's history, I suspect, but for general introduction to various battles and periods, a worthwhile find. I confess that some of their "Greatest Battles" are ones I've never heard of, but that's not a bad thing at all. I also appreciate that it's not Western Civ-centric, but includes a large number of battles from Asia (including China, Korea, et al).
For the more casual historical gamer, or a fantasy or Imagi-Nations player looking for battle scenarios, this could be a nice addition to your library. If you already concentrate on particular periods, you've probably already got it more than covered.