Sheldon: 'Leonard, please don't take this the wrong way, but the day you win a Nobel Prize is the day I begin my research on the drag coefficient of tassels on flying carpets.'

The Big Bang Theory is one of the biggest TV shows in the world. Featuring over 1,500 questions, 100 images, and some of the funniest quotes from the show, as well as a complete episode guide, this official book is a must-have for any fan.