The early sections about the origins of playing cards in Asia were very interesting. Apparently card games may stem with a gambling game played at first with real paper money, then with fake paper money. A few other fun facts: after the revolution, France replaced its royal cards with philosophers and such. Playing cards were one of the first printed materials widely available in Europe.
The book has a lot of illustrations. Though most are poor reproductions, they make the most interesting part of the book.