Lot of 69+ Sci Fi Books....
Charles Sheffield
Somtow Sucharitkul
Patricia McKillop
Avram Davidson
Barry Malzberg
Lester Del Rey
Lee Correy
Alexis Gilliland
Robert Lynn Asprin
Fritz Leiber
Barbara Hambly
Karl Edward Wagner
Robert Don Hughes
Arthur Clarke
Clifford Simak
Stephen Donaldson
Jerry Pournelle & more