Today is the anniversary of the death in 2001 of science fiction/fantasy author Poul Anderson. I currently have the following books by this prolific author on my shelf:
The Broken Sword
The Guardians of Time
The High Crusade
The High Crusade is a special favorite of mine and great fun to read. There is a 1994 filmed version of this book starring John Rhys-Davies.
Locus has an interview from 1997. There is an overview of his career at The Templeton Gate.
As I have recently joined the Society for Creative Anachronism and have been tentatively attending some functions in the Barony of Grey Niche, it is of particular interest to me that Anderson was one of the founders of the SCA back in the 60's.
Literature Map suggests A.E. Van Vogt for those who like Poul Anderson.