Asimov, Isaac (1920–1992). Pebble in the Sky. Garden City: Doubleday, 1950. First edition. Near fine in very good plus dustwrapper with minor faults. 

The first novel by the genre's most popular author, inaugurating his Galactic Empire series. A ripping yarn featuring an unlikely hero -- retired tailor Joseph Schwartz -- the story was first published in a pulp magazine in 1947. A very attractive copy of a book difficult to find in collector's condition.