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'Space Science Fiction' was launched in may of 1952. During it's impressive run it published many of Science Fiction's top writers. Collected here in this massive six hundred-plus page anthology are all of the most important stories that were published during its distinguished run. Included here are: 'Second Variety' by Philip K. Dick; 'Youth' by Isaac Asimov; 'To Each His Star' by Bryce Walton; 'Security' by Poul Anderson; 'Divinity' by William Morrison; 'The Hour of Battle' by Robert Sheckley; 'Instant of Decision' by Randall Garrett; 'Let 'em Breathe Space!' By Lester Del Rey; 'The Ultroom Error' by Jerry Sohl; 'Infinite Intruder' by Alan E. Nourse; 'Collectivum' by Mike Lewis; 'The Adventurer' by C. M. Kornbluth; 'Decision' by Frank M. Robinson; 'Pursuit' by Lester del Rey; 'Exile' by H. B. Fyfe; 'Stop Look and Dig' by George O. Smith; 'The Worshippers' by Damon Knight; 'The Hunters' by William Morrison; 'The Ego Machine' by Henry Kuttner; 'The Variable Man' by Philip K. Dick; and 'Ullr Uprising' by H. Beam Piper.