Books in Science Fiction (sorted alphabetically)
- Man Made Albert Teichner
- Manners of the Age H. B. Fyfe
- Man Obsessed Alan Edward Nourse
- Man of Distinction Michael Shaara
- Man of Many Minds E. Everett Evans
- Man Outside Evelyn E. Smith
- Man's Best Friend Evelyn E. Smith
- Man the Martians Made Frank Belknap Long
- Mantooth Christopher Leadem
- Man Who Hated Mars Randall Garrett
- Man Who Played to Lose Laurence M. Janifer
- Man Who Rocked the Earth Robert Williams Wood and Arthur Cheney Train
- Man Who Saw the Future Edmond Hamilton
- Man Who Was Six F. L. Wallace
- Marching Morons C. M. Kornbluth
- Marooner Charles A. Stearns
- Mars is My Destination Frank Belknap Long
- Martian Allen Glasser and A. R. Hilliard
- Martian Cabal Roman Frederick Starzl
- Martian Odyssey Stanley G. Weinbaum
- Martians Never Die Lucius Daniel
- Martian V.F.W. G. L. Vandenburg
- Mask of Death Paul Ernst
- Master of Life and Death Robert Silverberg
- Master of None Neil Goble