I picked this up, being a huge fan of Japanese design.
As a source of inspiration for graphic designers, this book does a terrific job. I currently have at least 10 pages flagged for follow-up, to use as a launching pad for my next concepts.
The book covers packaging, posters & ads, print, and web design, with each section offering up a visual smorgasboard (or revolving sushi-plate, if you will) of designs, including CDs, logos, ad campaigns, billboards, etc. As an added bonus, the CD offers a visual tour of Tokyo, interviews with prominent people in the Japanese advertising and design world, and samples of ads that have run on television.
All in all, this, as most Taschen books, is a brief, very general survey, with little if no copy, serving to inspire visually rather than educate intellectually. But the price is right, and the book is a great resource for visual designers everywhere.