You can search for Sushi cook books here. Also, the following are some good Sushi books:
Sushi
This stylish book includes information on the history and health benefits of sushi, as well as tips on how to make perfect sushi rice, select the freshest fish, and ....Buy this book at amazon.com or Barnes & Noble.com.
The Great Sushi and Sashimi Cookbook
The secret to preparing Japanese cuisine at home is an understanding of the basic ingredients and how a meal is composed. Buy this book at amazon.com or Barnes & Noble.com.
Sukibayashi Jiro -- Shun wo Nigiru
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Jiro Sukibayashi is a Sushi maestro whose restaurant was elected as one of world's top 6 by the Herald Tribune. This book shows the ins and outs of his work with life size photos. This is all in Japanese and available at amazon Japan.
Sushi Neta Zukan All Color Version
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This all color book introduces Edomae-zushi toppings as well as unique local Sushi toppings. Each topping photo comes in both English and Chinese names. Written all in Japanese and available at amazon Japan.
Note: Your computer needs to have Japanese language capability to view the amazon Japan site.
Sushi Neta Zukan All Color Version