The 2001 special edition release includes a wide variety of bonus materal, including a commentary track by Keir Dullea and Gary Lockwood, a Channel 4 documentary, several 2001-releated featurettes and an audio-only interview with Stanley Kubrick.

The Warner Brothers Directors Series Stanley Kubrick box set containins five two-disc special edition DVDs of 2001, A Clockwork Orange, The Shining, Full Metal Jacket, Eyes Wide Shut, along with the documentary, Stanley Kubrick: A Life in Pictures.

2001: Filming the Future
By Piers Bizony

The most complete book available about the technical planning and production of 2001. Contains many color photos and drawings.

The Making of 2001 : A Space Odyssey
Edited by Stephanie Schwam and Martin Scorsese

A fantastic collection of articles about the production of the film, as well as rare interviews, reviews, and commentaries on the film spanning the last 30 years. No pictures, but a fantastic resource.

Hal's Legacy: 2001's Computer As Dream and Reality
Edited by David G. Stork

A collection of essays by leading experts in the field of artificial intelligence on the technology depicted in 2001, and the real-life challenges involved in creating computers that have the capabilities of the HAL 9000.

Kubrick's 2001 : A Triple Allegory
By Leonard F. Wheat

This one is sitting on my bookshelf, waiting for a free moment when I can sit down and read it. An analysis of 2001 that argues that the story contains three allegories, depicting Homer's Odyssey, Arthur Clarke's theory of future man-machine symbiosis, and Nietzsche's Zarathustra.

2001: A Space Odyssey
By Arthur C. Clarke

A deluxe hardcover edition of the novel, with a new introduction by the author.

Also available:
Paperback edition
Paperback 25th anniversary edition
Unabridged audiocassette
Unabridged audio CD

The Sentinel : The Inspiration for 2001: A Space Odyssey
By Arthur C. Clarke

A new edition of an anthology that contains a number of Arthur C. Clarke short stories in addition to "The Sentinel", which was used by Clarke and Kubrick as the "seed" for developing the 2001 story.

Kubrick's Prophecy - 2001: A Space Odyssey
By Galen Bullard

I haven't had an opportunity to read this book, which isadvertised as "a lucid exposition of the artistry, meaning and transformative vision of Stanley Kubrick's film masterpiece, '2001: A Space Odyssey'".

2001: A Space Odyssey Original Motion Picture Sountrack

This definitive soundtrack album features all of the music as it appears in the film, music that appeared in the original MGM soundtrack album, as well as a montage of HAL's dialogue. With extensive liner notes.

Alex North's 2001

Stanley Kubrick originally approached composer Alex North to write the score for 2001. During the editing process, he decided instead to use existing classical music for the film. Some prefer this rejected score, recorded for the first time by Jerry Goldsmith and the National Philharmoic Orchestra.