Red Alert
Peter Bryant
First on Mars
Rex Gordon
First to the Stars
Masters of Evolution
Damon Knight
The Plot Against Earth
Robert Silverberg
The Brain-Stealers
Murray Leinster
The Pirates of Zan
The Man Who Lived Forever
R. DeWitt Miller & Anna Hunger
Secret of the Lost Race
Andre Norton
The Ultimate Invader
Eric Frank Russell
The Space Willies
Master of Life and Death
Invaders from Earth
The Planet Killers
The Mars Monopoly
Jerry Sohl
One Against Herculum
First on the Moon
Jeff Sutton
The Space-Born
E. C. Tubb
The Chaos Fighters
Robert Moore Williams
The Blue Atom