Essentially a game-by-game account of the winners of the Spiel Des Jahres each year, but much more interesting than that might sound. There are actually story lines, the chapters are connected to each other thematically, it's not just a list of games and a description, it's very well-done. I promise, and you learn about game categories and mechanics along the way.
And it's great fun, with a perfect balance between text and image. Too little text and it would seem a superficial coffee book, too much text and we'd be left wondering "but what does the game look like," but they nailed the sweet spot in the middle.
However, HUGE complaint, more so because it was so avoidable: several chapters had sidebars with tiny cream text on a yellow background, yes, you heard that right. Even with magnifying glasses it was impossible to read. The book's production designer should be ashamed! Sometimes it was cream text on forest greeen: no problem. But on yellow? Or beige? Nope.
(Note: I'm a writer, so I suffer when I offer fewer than five stars. But these aren't ratings of quality, they're a subjective account of how much I liked the book: 5* = an unalloyed pleasure from start to finish, 4* = really enjoyed it, 3* = readable but not thrilling, 2* = disappointing, and 1* = hated it.)