I picked up this book as research into the earlier days of baseball, and it did not disappoint! It was fascinating to read two experts' take on the best players in baseball history 30 years ago, before Clemens, Maddux, Bonds and many others would join the conversation. Ritter and Honig do a good job picking their top 100 and defending their choices (though I would of course have quibbles with some selections).
I would recommend this book if you are interested in baseball history. It is not particularly in-depth-some players only have about 3/4 of a page devoted to them-but it is not designed to be. The value of the book lies in its historical perspective, and somewhat surprisingly, the great old photos that fill its pages.