I have all discworld books, I would definitely reread most of them. I just reread The Hail Mary Project.

Project Hail Mary was amazing. Can't wait for the movie too.

The Dark Tower series. All of them

Zen and the Art of Motorcycle Maintenance

by Robert M. Pirsig

A Long Way to a Small Angry Planet - Becky Chambers

A few I've read at least twice and will definitely read again at some point:

• Catch 22
• Infinite Jest
• The Windup Bird Chronicle
• The Handmaid's Tale
• Full 5 part Hitchhiker's Guide trilogy
• His Dark Materials Trilogy (plus the Book of Dust series, if we ever get that last one!!)
• Fear and Loathing in Las Vegas
• Brave New World
• Slaughterhouse Five

Lord Of The Rings.
He Who Fights With Monsters.
Thrawn.
The Hunt For Red October.
The Cardinal of the Kremlin.

So many I will give another listen to.

Most of The Culture series

Just done a reread of these and would gladly reread again.

The Hitchhikers Guide to the Galaxy (all 5 books in the series)

They are short enough that you could easily read all of them in a couple months at a steady pace.

Several that others have already mentioned, and:

• The Golden Age Oecumene, by John C Wright
• The Chronicles of Master Li and Number Ten Ox, by Barry Hughart
• Any and all of The Culture novels
• The Hobbit, and TLotR trilogy. Used to read them every summer, for about twenty years.
• Armor, by John Steakley. Sadly, the only sci-fi novel he ever wrote, and one of only two books he ever authored, IIRC.
• The Jean le Flambeur trilogy by Hannu Rajaniemi, which is on my list to read again this year.
• A Wizard of Earthsea trilogy, which I'm about to read again as soon as my wife finished them.
• The Chronicles of Narnia, which I used to read frequently when younger. I'm almost afraid to pick them up again now, for fear that they won't be as good (for an adult) as I remember.

Neuromancer moves faster than some movies. Absolutely worth rereading

Adam Levin's The Instructions

Ecclesiastes

Philip K. Dick's Galactic Pot-Healer — actually most Dick outside of A Scanner Darkly

Neal Stephenson's... well, anything, but especially Zodiac, Anthem, and Diamond Age

Brian Daley's Requiem for a Ruler of Worlds

Margaret Atwood's The Year of the Flood and The Blind Assassin

Anything by Ursula LeGuin, ever

Hugh McLeod's Ignore Everybody

Lloyd Alexander's Prydain series

Douglas Adam's Hitchhiker's Trilogy

The Murderbot diaries.

This is also an awesome thread. I see a lot of books I love and a lot that I'm interested in.

Hitchhikers guide to the galaxy

I’m not a big rereader, but at some point I’d like to read through the expanse and the locked tomb again

The Sandman Slim series

https://www.goodreads.com/series/46424-sandman-slim

And

The Dresden Files series

https://www.goodreads.com/search?q=The+Dresden+Files+series

I've read Terry Pratchett's Night Watch three times, currently reading The Color of Magic for the first time and then I'm going to re-read Mort

I've read Ellen Raskin's The Westing Game three times, but that was for school. Pretty good children's mystery book, though

The Dispossessed

Left Hand of Darkness

The bone comic book omnibus from Jeff smith Bone omnibus amazon link

The book is basically Tolkien+Disney, it is aimed at a kid audience but it tackles some heavy topics that adults will enjoy, its great because it tackles metaphysics a lot in ways that are interesting for all ages.

Speaker for the Dead

Eisenhorn

Count of Monte Cristo

The Emperor of All Maladies

Moby Dick

Lords of Silence

All Honorable Men: History of the war in Lebanon

Adams and Victor's Principles of Neurology

The Biology of Cancer (Weinberg)

Japan to 1600

History of Medieval Russia (Martin)

The Baltic: A History

On War (Clausewitz)

The Back Channel

Timbuktu (Villiers)

Sorry if this is too many, just looked at my book app for ones I keep reading.

Edit: Fuck it, I'm having fun. Here are a few more I remembered while roasting a bowl.

Dune

Amulet of Samarkand

Venice (Madden)

The Golden Compass

First and Only (Abnett) - read the first omnibus

Harrisons Manual of Medicine 18th ed

Gomorrah (Saviano)

The Gunpowder Age (Tonio)

The Money Illusion (Sumner)

I plan to reread all Clive Barker novels a second time, at some point in my life. His prose is just so unique and has an effortless beauty about it that I've yet to find in another author.

Plot can only really draw you in once... when you already know what happens in a story it doesn't have the same pull it had the first time. But prose has a lasting appeal, one that can be revisited. The indescribable quality of the way that words can make you feel is unique to the relationship between reader and writer.

I should probably give The Illuminatus! Trilogy another read.

Snow Crash Rendezvous with Rama Foundation (all of them) Moonwalking with Einstein (non function about memory champions)

Nobody has yet mentioned A Gentleman in Moscow, so I will. It's fairly recent, but I know I'll read it again in a couple of years.

Slaughterhouse 5 by Kurt Vonnegut Jr.

Childhood's End by Arthur C. Clarke

I re-read it a few times already, and even though written in the 50s it holds up quite well (except for the total absence of computers). Its a brilliant read. Edit: to clarify, I meant the societal trends he projected are quite fascinating. Also the transition to a post scarcity society. It's not very prophetic obviously. :)

The Count of Montecristo.

'The Count of Monte Cristo' is one I look forward to reading every few years.

There are so many, but here are a few from the top of my head:

The Silmarillion, J.R.R. Tolkien.

The Lord of the Rings, J.R.R. Tolkien.

Time Enough For Love, Robert A. Heinlein.

Starship Troopers, Robert A. Heinlein.

Don Quijote, Miguel de Cervantes.

Divine Comedy, Dante Alighieri.

Dune, Frank Herbert.

Paradise Lost, John Milton.

Childhood's End, Arthur C. Clarke.

The Riftwar Saga, Raymond E. Feist.

Witcher, I've read it at least once every two/three years for the last 18 years and it's still entertaining.

I'm a big rereader in general, but occasionally a book will grab me so hard that I finish it & begin again right away. I've had two of those in the past year:

• Moonbound by Robin Sloan
• Cahokia Jazz by Francis Spufford

Considering I am currently rereading the Stormlight Archive - I’ll go with that.

Books. Multiple.

The Practice Effect by David Brin. It's an isekai (it's not anime, but it's an isekai) where things get MORE useful when you use them, reversing entropy.

Sentenced to Prism. MC is sent on a mission to a world inhabited by silicate based life forms. Shenanigans ensue. Mildly autistic coded MC.

Resurrection Inc. The dead are resurrected as mindless zombie robots. Sometimes it goes wrong and the dead regain their memories. The MC does. Hijinks ensue.

edit - more

Mistborn Chronicles - an orphan gets super powers in a very messed up world. A group recruits her for a heist.