The application provides you with the necessary tools to write and modify everything you want. The concept of "look like a book" is defined only by you and the way your text looks. Basically, you will need to apply paragraphing to your text to make it look like a book which means that you should get a real book and analyze its contents, writing style, paragraphing, etc. You can only then use the built-in tools to set-up margins, pagination, etc.