I bought this book in a bookshop here in Tokyo actually after reading through it, I worked in Japanese resturants both in Australia and Japan for about 4 years and after making a change in my line of work I wanted a reference book on some of the areas that I didn't get time to learn in full. I'd made Sushi professionally but wasn't doing it long enough to rotate through all of the different areas of prep
There are very good step by step picture (glossy photos) instructions for how to cut fish and prepare different types of fish plus there are some great novelty chirashi items for kids too.
The proof in the pudding for me though was the part on Shari (sushi rice), if that more fundumental part isn't good then it calls the quality of the whole book into question. It was certainly not lacking!
In the end, with the sushi rice in this book so good the fact that there are lots of imaginative recipes in here that you might get in a japanese home but never in a resturant on top of the standard stuff really makes this book worth while. All the fundamentals are here, plus a lot of fun stuff so you get to involve yourself to a level that suits you.