Complex sentence: The book's artwork is modeled after a pack of Camels, and the package artwork and history are discussed extensively in the book, and it is also mentioned that a pack of Camels is the best friend you have in prison.
Split into simpler sentences: The book's artwork is modeled after a pack of Camels, and the package artwork and history are discussed extensively in the book. It is also mentioned that a pack of Camels is the best friend you have in prison.