Really good but beware of the naked lady on the back and the inner cover and some pages, suprised me when I got in the mail, so be careful. Considered yourself warned. :/

For starters this book gives an insight on the techniques used by Oh Great! Yasuhiro Nightow and Satoshi Shiki along with interviews. The rest of the book gives insight on what types of tools to use, how to use them and how to obtain the maximum effect. It also includes a training program to teach the proper use of pen nibs, inks and cross hatching techniques. This book is very helpful if you want to become an expert at inking.