This is a helpful resource for every manga reader. Because it includes manga characters from way back to the present times, it has a somewhat historical approach, which leads the reader to understand and appreciate manga at a new level. However, I feel that there should be a sequel or companion to this book. The author has categorized characters by their nature or roles in respective mangas, their titles are merely mentioned or referred to. This book would be rendered complete with a companion book of 500 mangas categorized by genre, don't you think? ( )