First Contacts: The Essential Murray Leinster contains 24 stories covering the full spectrum of Leinster's career. Included are such classic early works as "Proxima Centauri", "First Contact", one of the earliest alternate timeline stories, "Sidewise in Time", a story written in 1945 that anticipated the Internet, "A Logic Named Joe" and the Hugo Award-winning "Exploration Team". Also, here for the first time are "The Great Catastrophe", his lost pulp epic, and the inspiring "To All Fat Policemen".