Japanese (Sushi, esp.) Guidebook Recommendations?
Lonely Planet World Food: Japan is a good overall look at Japanese cuisine. It does have a section on sushi, but covers everything else, as well. There is a glossary and very nice pictures. If you're looking for an overall basic guide, this would be a good choice.
I personally love my copy of Nobu The Cookbook by Chef Nobuyuki Matsuhisa.
There are a ton of books out there that will do the trick for everyday sushi recipes, but if you want something with unique recipes [as Nobu is known for], I think you'll be pleased with this book. Apart from the recipes, the helpful glossary, the index of his suppliers from around the world, and the beautiful photos, it also has a brief and interesting history about his start in the world of cuisine.
I especially like the chapters on "basics", where he talks about the basics of Japanese ingredients, techniques, measurements and equipment -- all of that was very helpful to me. There's also a section on how to make more than a dozen different sauces, suggestions for dinner plans, desserts and some great blurbs on sake and other suitable cocktails.
I bought it at his Nobu restaurant in Tokyo and it's one of my fave souvenirs from that trip, and one of the best cookbooks I've bought to date:
He has a newer book called Nobu Now, which is next on my list of sushi books to buy [there are so many out there...].