This is not a "how to draw" book, but rather a "how to think creatively" book. If you wanted to draw the characters shown in this book, you'd need a lot of experience to do so. However, any manga artist from beginner level through advanced would benefit from the matrix technique described here, not to mention the benefits of having such a massive collection of diverse characters in a single volume. The matrix technique, in a nutshell, is a way to combine different aspects, both physical and mental, to create unique characters. For example, one character (a "wind spirit") was created using a witch, a circus leader, a balloon and the sky as components. Weird? Certainly. However, at first glance it's not obvious that these are the pieces that comprise it, but after reading the character description it becomes readily apparent, as is the logic for selecting these elements. To boil it down, this book is about taking a diverse system of aspects and using them to create characters that are greater than the sum of their parts. In essence, this book is an immunization against artist's block or creative burnout.