author : A. E. van Vogtfacebook : https://www.facebook.com/tordotcomA. E. Van Vogt was a SFWA Grand Master. He was born in Canada and moved to the U.S. in 1944, by which time he was well established as one of John W. Campbell's stable of writers for Astounding Science-Fiction. His books include Slan and The World of Null-A. He lived in Los Angeles, California and died in 2000.