1. An object containing information (ie: words, pictures) used for the purpose of entertainment or education. These are now available in electronic form. One that writes such a 'book' has the ability to earn money known as 'royalty'.
2. To get into trouble with an authority figure such as a teacher or a police officer.
3. To make an escape... usually from an authority figure such as the ones mentioned above.
Student 1: Dude! I forgot to read my book for my report for English Class!
Student 2: Did the teacher book you?
Student 1: Na man, I booked before she could find out!