Bottom Line Up Front: Its OK, but you probably have most of it in your library already.
Around half the book is a brief description of each era of wargaming, followed by short (2-3 pages) sets of rules to try out the different periods. Remember the quick play rules that used to grace the pages of Miniature wages and such magazines? Well on average the rules in this book are more generic. Fast play yes, but very much targeted at beginners. Veterans may find them a little bland.
The next half of the book provides 30 war-game scenarios that are period agnostic and present the players with a number of challenges. These are quite useful, but if you have a copy of either of Charles Stuart Grant's fabled Wargame Scenario books then you already have them. Of course much more uncommon to find and expensive when you do.
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