Dark Matter by Blake Crouch
Parallel Worlds And Universes
36 books — 6 voters
The First Fifteen Lives of Harry August by Claire North
Life Loops
11 books — 4 voters

The Seven Deaths of Evelyn Hardcastle by Stuart TurtonThe First Fifteen Lives of Harry August by Claire NorthRecursion by Blake CrouchAll Our Wrong Todays by Elan Mastai
Time is a False Construct
105 books — 25 voters
The First Fifteen Lives of Harry August by Claire NorthThe Rise and Fall of D.O.D.O. by Neal StephensonAll You Zombies by Robert A. Heinlein
The Best Time Travel Books of All Time
812 books — 1,683 voters

Bones of the Earth by Michael SwanwickJurassic Park by Michael Crichton
Dinosaur Fantasy and Science Fiction
103 books — 162 voters
All You Need is Kill, Vol. 1 by Ryōsuke TakeuchiAll You Need is Kill, Vol. 2 by Ryōsuke Takeuchi
Stuck in a Time Loop
12 books — 10 voters

The 7 1/2 Deaths of Evelyn Hardcastle by Stuart TurtonThe Girl Who Leapt Through Time Manga by Ranmaru KotoneThe First Fifteen Lives of Harry August by Claire NorthAll You Need Is Kill by Hiroshi SakurazakaErased, Volume 1 by Kei Sanbe
Groundhog's day Premise
51 books — 13 voters
Exhalation by Ted Chiang
Thought Provoking
2,845 books — 1,447 voters

Dark Matter by Blake CrouchThe Flicker Men by Ted KosmatkaFlight by Vanna Bonta
Quantum Mechanics in Fiction
32 books — 21 voters

Escaping Infinity by Richard Paolinelli
Pulp Revolution
71 books — 28 voters

The Fellowship of the Ring by J.R.R. Tolkien
Best Action-Adventure Novels
2,509 books — 2,699 voters

Childhood’s End by Arthur C. ClarkeRendezvous with Rama by Arthur C. ClarkeDiaspora by Greg EganStories of Your Life and Others by Ted Chiang
Mind-bending Science Fiction
222 books — 160 voters
Uncle Scrooge and Donald Duck by Don RosaUncle Scrooge and Donald Duck by Don RosaUncle Scrooge and Donald Duck by Don RosaThe Life and Times of Scrooge McDuck by Don RosaThe Life and Times of Scrooge McDuck, Volume One by Don Rosa
Disney Comics
84 books — 6 voters

Fables, Vol. 1 by Bill WillinghamFables, Vol. 2 by Bill Willingham
Great Graphic Novels Without Superheroes
1,011 books — 443 voters
1984 by George OrwellBrave New World by Aldous HuxleyEnder’s Game by Orson Scott CardThe Minority Report by Philip K. Dick
Best Futuristic Books
85 books — 83 voters

Dark Matter by Blake CrouchSteins;Gate 1 by Yomi SarachiSteins;Gate, Volume 2 by Yomi SarachiSteins;Gate 3 by Yomi SarachiNosso Lar by Francisco Cândido Xavier
Parallel Universes
302 books — 182 voters
Dark Matter by Blake CrouchRecursion by Blake CrouchThe First Fifteen Lives of Harry August by Claire NorthAll Our Wrong Todays by Elan Mastai
Books with a Multiverse
228 books — 87 voters

Somewhere In Time by Richard MathesonDark Matter by Blake Crouch
Time Travel & Multiverse Reads
264 books — 39 voters
A Sound of Thunder and Other Stories by Ray BradburyThe Accidental Time Machine by Joe HaldemanA Wrinkle in Time by Madeleine L'Engle11/22/63 by Stephen        KingTimeline by Michael Crichton
Best Time Travel Fiction
1,952 books — 5,234 voters

Close Encounters of the Third Kind by Steven SpielbergStories of Your Life and Others by Ted ChiangContact by Carl Sagan
Optimistic Space Scifi
97 books — 103 voters
All Our Wrong Todays by Elan MastaiAll You Zombies by Robert A. HeinleinDark Matter by Blake CrouchAll You Need Is Kill by Hiroshi Sakurazaka11/22/63 by Stephen        King
Time Loops
138 books — 120 voters