Over the course of five decades, Kurt Vonnegut created a complex and interconnected web of characters, settings, and concepts. From the birthplace of Kilgore Trout (his sci-fiwriting alter ego) to the municipal landmarks of Midland City (the setting for Breakfast of Champions), this encyclopedia is the final word on the legendary author's personal universe. This book identifies every major and minor character from Celia Aamons to Zog, as well as recurring themes from all of his works, including lesser-known gems like his revisionist libretto for Stravinsky's opera L'Histoire du soldat and his 1980 children's book Sun Moon Star. Vonnegut's longtime friend Marc Leeds provides expert notes explaining the significance of many items, but relies primarily on extended quotations from Vonnegut himself.