What books do you re-read every decade?

These are books I re-read every few years, I would say more often than every decade though:

Iain M. Banks S.F. novels:

Excession, Consider Phlebas, The Algebraist, Use of Weapons, Look to Windward, Surface Detail, Matter. I don't re-read Inversions or Feersum Endjinn as I find them harder to get into (and they aren't Culture novels anyway).

Neal Asher: Cowl, Gridlinked and Brass Man

Michel Swanwick: Vacuum Flowers

Bruce Sterling: Involution ocean

George R.R. Martin: Tuf Voyaging, Nightflyers

Samuel Delaney: Nova. Nightflyers and Nova are back to back in a single volume as Del SF Binary Star #5.

William Gibson: Neuromancer

Robert Reed: Sister Alice

I'm currently re-reading (for the first time) Micaiah Johnson - The Space Between Worlds. She has an upcoming book this year: Those Beyond the Wall, which seems to be a prequel.

My candidates are largely fiction, such as _To Say Nothing of the Dog_ (Connie Willis) and _Door Into Summer_ (Heinlein).

But I do re-read Jerry Weinberg's _Secrets of Consulting_ every so often.

Related from two weeks ago "Ask HN: What books do you want to read over again?" https://news.ycombinator.com/item?id=38783425

I'm surprised people list fiction. For me it would be non-fiction to relearn. So far I only reread one book on the theory of game theory (not in english so I won't post it here).

Galactic Patrol