N-Space N-Space is a collection of short stories by American science fiction author Larry Niven released in 1990. Some of the stories are set in Niven's Known Space universe. Also included are various essays, articles and anecdotes by Niven and others, excerpts from some of his novels, and an introduction by Tom Clancy. Its sequel is Playgrounds of the Mind.

Known Space stories and other relevant essays and articles

From World of Ptavvs
All the Myriad Ways
From A Gift From Earth
From Ringworld
Shall We Indulge in Rishathra? (with cartoons by William Rotsler)
Inconstant Moon
Cloak of Anarchy
From Protector
Madness Has Its Place

CoDominium stories

From The Mote in God's Eye (with Jerry Pournelle)
Building The Mote in God's Eye (with Jerry Pournelle)

Other relevant essays and articles

Introduction: The Maker of Worlds by Tom Clancy
On Niven (by David Brin, Gregory Benford, Wendy All, John Hertz, Steven Barnes, and Frederik Pohl)
Foreword: Playgrounds for the Mind
Niven's Laws
Bibliography of Larry Niven

Links: Wikipedia, Google