A how-to-write book. Covering exactly the topics described in the title.
Goes into all sort of aspects, Like complicated motives, character change, the different types of POV (first, third, omniscient, epistolary), humorous characters and how they differ from the usual rules, what you need to know about the character's background in order to write, the complications that you have view the character as the reader will, the importance of putting attitude into the description, and more.