Since his first sale in 1950, Harry Harrison has been one of the science fiction world's creative dynamos, working in every subgenre of the field, always bursting with provocative ideas. Parodic one moment, serious the next, Harrison has been called by Brian Aldiss one of the few authors capable of carrying the old vigour of earlier days forward into a new epoch. On the occasion of his fiftieth anniversary as a professional writer, Harrison gathered fifty of his best stories - one for each year - along with notes and introductory material. 50 IN 50 is a memoir, a compendium of an engaging body of work, and a look at the history of science fiction in the second half of the 20th century.