88 books like The Door into Summer

I think this novel, by physicist Gregory Benford, is one of the best fictional representations of how science is really done and of the real world of scientists and graduate students.

It is also an early exploration of the concept of tachyons, particles that cannot move slower or as slow as the speed of light but always have to go faster. (These have been proposed only in theory, but what makes them exciting is that they would travel backward in time.) In the book, that property enables people in the future to communicate with us in their past.

Another thing I like about this book is that some of his characters are thinly disguised (or not disguised) versions of real astronomers of the time.

This is the story that first got me interested in science fiction. Of course, we now recognise some of the flaws in the science, but consider that at the time of its writing steam propulsion was still in its infancy, most ships were still built of timber, and Verne envisaged a ship capable of indefinite travel beneath the ocean surface – something not even possible until the advent of nuclear power almost a century later. Even today Verne’s vision and the story he wove around it can inspire.

I had to include this book because this is the book that opened up the whole world of time travel for me.

I read it as a young teenager and have loved everything about the concept of time travel ever since. I think the reason is that there is this implied desire to fix the mistakes of our past or something, and that whole idea bubbles under the surface of Wells’ classic.

Of course on the other side of that coin is that I would later come to learn that Wells was an atheist, and so that brings up the whole question of whether time travel is a human attempt to play God, and whether time travel is only possible in a universe where there is no God. 

Irreverent, hilarious, and surprisingly touching, this book is Terry Prachett at his best—the rapier-sharp wit, the brilliant satire, and, my favorite of all, the moments where his characters are shoved up against questions of morality and the choice whether to give in to ugliness and hopelessness or to hold onto a hardscrabble optimism.

Cynical, jaded Sam Vines may be one of my favorite examples of a character who stubbornly refuses to give up on believing that while the world might never be perfect, just maybe, if enough imperfect, barely-holding-themselves-together people try hard enough, it can be a little better than it was.

Sci-fi has always been my favorite genre for the simple reason that every other genre can be explored under the blanket of science fiction.

End of Eternity is a fine example of this, in that it is both a love story and a thriller. Like modern-day sci-fi writers such as Andy Weir (Computer Programmer), Alister Reynolds (PhD in Astrophysics), and Liu Cixin (Computer Engineer), Asimov always leans on his scientific knowledge as a biochemist when writing.

Although End of Eternity does involve much biochemistry like some of Asimov’s other books, it does try to explain and navigate the complexities of time travel, which sometimes requires the mechanics of scientific thinking. I find time travel is always fun to read, and when there’s jealousy and love involved, it’s a recipe for a great story.

Romance and love are of course great inducements to time travel, and have animated many a time travel novel and series. I like The Mindtraveler the best. It combines the struggle for true love with an astute knowledge of physics, a keen eye for the academic landscape, and a witty sense of humor.

When it comes to fantasy books, it’s hard to narrow things down to only one book in Terry Pratchett’s Discworld series.

He was a master of satire and the use of asides to parody the tropes of fantasy while also telling compelling stories and building a world you could imagine visiting. If we’re going to annoy the people trying to ban LGBTQ+ books, though, I’d have to recommend starting with The Fifth Elephant.

As the kingdom of dwarves is in disarray over the disappearance of the Scone necessary to crown their king, a group of Night Watch detectives from a distant land must work together to solve the crime while dodging evil werewolves.

One of the detectives on the case is Cheery, a dwarf who causes waves for openly identifying as female (the dwarves follow logic similar to J.R.R. Tolkien’s dwarves in that every dwarf has a beard and gender… show more.

This book and the others, including The Globe, Darwin’s Watch, and Judgement Day, are wonderful in their mix of fantasy – Pratchett’s Discworld Wizards mixing it up in their quest to understand the “Round World” they accidentally created – and real science introduced and explained by Ian Stewart and Jack Cohen. The fantasy and the science are seamlessly interwoven in a way that make some complex subjects not just understandable but very readable. Like the explanation of exploring particle physics in the Large Hadron Collider by comparing it to a race that has never seen a piano, cannot see the piano, and try to determine its function and properties by hitting it and eventually pushing it out of a window five stories up and then naming the sounds it makes on hitting the ground…

This is a novel that explores all the complexities and paradoxes and oddities associated with time travel. It takes place in a future world in which time travel is a part of life, and so must be monitored and regulated like any other technology. Because time travel holds such a huge potential for disaster, strict rules must be established and enforced. But what happens when somebody flaunts those rules for their own personal enjoyment? This novel explores these concepts in a wild, and often erotic, fashion. 

This book really perpetuated my love of time-travel tales and all the complexities involved in a society where time travel is an accepted norm. It's a totally fun novel that deals with some truly existential concepts in an entertaining way and inspires that sense of wonder that fans of SF crave. It's one of those stories that stick with you for many, many years… show more.

This contemporary SF novel deals with a lot of the nitty-gritty, nuts-and-bolts aspect of time travel, as well as providing an intriguing story. So many time-travel stories gloss over many of the implications of this technology, but The Chronocar doesn't shy away from such concepts. It also features believable, rough-around-the-edges characters and a truly surprising plot twist. Also, one of my favorite things about this novel is how reminiscent it is of Golden Age SF.