By Sir Maurice Dean
By Enid Blyton
By K.J. Driscoll
By Giovanni Clerici
By A. Mayfield
By Sylvia Katz
By Harold Fullard
By Robert Silverberg
By Michael Anthony Foster
By Damon Knight
By Philip K. Dick
By F. L. Lucas
By olaf stapledon
By algis budrys
By William Horwood
By David Marsden
By William Davidson
By Joan Palmer
By Mike Garbett, Brian Goulding
By M. L. Bush
By Michael H. Day