Simplify the following text for a Grade 10 native English-speaking person.
Original: It also launched the The Official Guide to the Xenaverse , by Robert Weisbrot , with photographs in color and black and white , a complete and detailed episode guide to the first two seasons , a look behind the scenes , the intriguing story of the origin of Xena : Warrior Princess , biographies of cast and crew and trivias about the show .
Simplified: Many books have been released as tie-ins , including The Official Guide to the Xenaverse by Robert Weisbrot . This includes a detailed episode guide for the first two seasons , a look behind the scenes , the story of the origin of the show , biographies of cast and crew , and trivia about the show .