The Emmy Award-nominated Adventure Time first exploded onto television screens in April 2010, and is one of the most popular animated programs on Cartoon Network. It follows the adventures of Jake the dog and Finn the human in the post-apocalyptic Land of Ooo. Best friends Finn and Jake live among other colorful, crazy characters such as Princess Bubblegum, Lady Rainicorn, Lumpy Space Princess, the Ice King, and Marceline the Vampire Queen, and the show’s climactic storylines, vibrant and colorful animation, and adult humor and character development have made Adventure Time a hit among children, tweens, college students, and adults. The Adventure Time Encyclopaedia is both a companion and an indispensable supplement to the characters, story, and world of the show. Fans of all ages will love this side-splittingly funny, complex, and intricate love letter to the cartoon. Martin Olson is a comedy writer, television producer, stage director, and composer. Olson is best known as a founding father of the Boston comedy scene, and he has received an Emmy nomination and Ace Award for television writing. Olson lives in Los Angeles.