If I ever had any "technical" questions about Inuyasha characters, this is the book I refer to. Published by Shogakukan and written with notes and discussions with Rumiko Takahashi, this book is the official Inuyasha encyclopedia that details the characters and manga events up until spring 2003 (Hakudoushi was the newest character introduced at the time).

Ever wonder where the "Inuyasha is 15 years old" claim came from? It's this book. This book has many interesting things to say. Some friends and I have been working on translating parts of it, but as it's pretty detailed, and nearly 300 pages long, it's slow going and naturally other things come up to push this project back.

Below I've put together descriptions of the book's sections and translated a few excerpts. I love this book. ;)

Section excerpts and descriptions...

Inuyasha Ougikaidan: Sengoku Ayashi no Michiyuki
(Introduction and series "summary")

Inuyasha
Myouga
Kagome Higurashi
Miroku
Hachimon the Tanuki
Sango
Kohaku
Shippou