Been reading this book. Confusing but excellent content. It is really filled with a lot of information for animators and modellers. Not only teaches animation, but even modelling, like how to model a human, which is a problematic thing for most modellers to model. It is a must read/have reference for those involved in animation. The terms used are simple and they have step by step guides, so even those who have no experience in animation, but is interested in it, can use the book as a guide.