Some books frighten and thrill us in equal measure. If that sounds good to you, you will love novelist Aliya Whiteley's recommendations: five outstanding sci-fi horror books that, like the original Frankenstein, use dread and disgust to raise fascinating questions about science and what it means to be human.

Science fiction helps us work through not only the possibilities of the cosmos but also the nature of humanity itself, argues Jaime Green—science writer and author of a new book on the search for alien biology, The Possibility of Life. Here she highlights five classic works of sci-fi that explore ideas of consciousness and communication in the setting of outer space.

J. G. Ballard, the British science fiction writer and surrealist, is often credited as some kind of modern-day prophet. But what he was really doing was taking contemporary trends and extending them to their logical extremes, argues Mark Blacklock, the literary scholar and editor of a new collection of Ballard's nonfiction writing. Here he selects five of Ballard's best books.

Ursula Le Guin's most groundbreaking books are considered landmark texts in speculative fiction, exploring themes of colonisation, gender, nationalism and environmentalism through allegorical means. Here, the science fiction scholar Sherryl Vint selects five of the best books by Ursula Le Guin and examines her legacy as one of the great American writers.

Often described as the 'father of science fiction', H G Wells was a man of extraordinary charisma and vivid imagination. Yet he suffered terribly from class anxiety and subscribed to political beliefs we now find abhorrent, says the editor and author Roger Luckhurst. He recommends the best books to learn more about the life and work of the British writer H G Wells.

From lesbian necromancers in space to a magical send-up of the classic high school romance, there is a queer science fiction or fantasy book to suit everyone's taste, says the bestselling author Everina Maxwell. Here, she selects five cracking reads with queer protagonists.

In 1995, Octavia Butler became the first science fiction and fantasy author to be awarded a Macarthur 'genius' grant. Her writing often dealt with the moral complexities of survival, and foregrounded African American characters at a time where Black protagonists were few. Nisi Shawl, a personal friend and editor of Butler's collected works, selects five of the best books to read for an introduction to Octavia Butler's writing.

There’s nothing better than discovering an exciting new writer at exactly the moment they break onto the scene. Here novelist Yume Kitasei recommends brand new sci-fi and fantasy (SFF) novels by debut authors coming out in 2023.

Ken Liu, the multi-award winning author of The Paper Menagerie, explains how using elements of fantasy and science fiction can help us examine deep truths about the human condition, as he recommends the best of contemporary speculative fiction.

"Imagination is a national security imperative," according to acclaimed novelist, journalist and decorated US Marine Elliot Ackerman. He's written a novel with retired Admiral Jim Stavridis, about what would happen if the US went to war with China. Here, he talks us through his favourite books of apocalyptic fiction—and the truths they reveal about war, humanity, and literature.