A very complete overview of Larry Niven's various series, including a complete listing of stories for each series.

A description of the Known Space Universe.

Lensman's Known Space Chronology

A guide to that ties Known Space stories and novels together.

All about the Kzinti, the cat like warriors of Known Space.

All about Puppeteers, perhaps the most powerful creatures in the galaxy, for cowards.

Humans are scattered throughout Known Space, living on planets or in asteroid belts or spending their time flying between stars.

One of the interesting characteristics of Known Space is the prevalence and variety of psychic powers. Not content with simple mind-reading, Niven explores and combines various forms of ESP and telekenesis in unique ways in Known Space.