Mothers and Other Monsters
Maureen F. McHugh
MotherShip
Tony Chandler
Motherwife
Amy Sterling Casil
The Mount
Carol Emshwiller
Mountain of Stolen Dreams
Bruce Coville
The Mountains of Mourning
Lois McMaster Bujold
Miles Vorkosigan (5)
Moving Mars
Greg Bear
Queen of Angels (3)
The Moving Picture Boys at Panama
Victor Appleton
The Moving Picture Boys on the Coast
The Moving Picture Boys on the War Front
Mr. Spaceship
Philip K. Dick
Mr. Chipfellow's Jackpot
Dick Purcell
Mr. Spaceman
Robert Olen Butler
Much at Stake
Kevin J. Anderson
The Multiple Man
Ben Bova
The Multiplex Man
James P. Hogan
The Mummy and Miss Nitocris
George Griffith
Murasaki
Robert Silverberg & Martin H. Greenberg
Murder in Cormyr
Chet Williamson
Forgotten Realms: Mysteries (1)
Murder in the Fourth Dimension
Clark Ashton Smith