If you loved how The Science Fiction Encyclopedia offers an exhaustive, well-organized exploration of science fiction’s subgenres, authors, and tropes, you’ll appreciate The Encyclopedia of Fantasy by John Clute and John Grant. This companion volume is equally detailed, providing deep dives into the history, terminology, and major figures of fantasy literature, with entries ranging from mythic archetypes to the works of Tolkien, Le Guin, and Pratchett. It’s an indispensable reference for anyone who enjoys mapping the vast territory of speculative fiction.

If you found yourself intrigued by The Science Fiction Encyclopedia’s meticulous cataloguing of concepts and terminology, Brave New Words will delight you with its deep dive into the language of science fiction. This dictionary traces the origins and evolution of iconic terms like ‘cyberspace’ and ‘terraform,’ providing historical context and quotations from classic stories. It’s a treasure trove for SF fans who love learning how the genre shapes, and is shaped by, the words we use.

If you enjoyed the way The Science Fiction Encyclopedia unpacks the genre from multiple angles—its themes, history, and major movements—The Cambridge Companion to Science Fiction will give you even more to sink your teeth into. Each essay provides scholarly yet accessible perspectives on everything from early pulp magazines to cyberpunk, with expert contributors like Brian Stableford and Gwyneth Jones. It’s a fascinating, multi-faceted look at what makes science fiction tick.

If you appreciated the sweeping coverage of every era and subgenre in The Science Fiction Encyclopedia, The New Encyclopedia of Science Fiction by James Gunn offers a similarly broad, ambitious survey. Covering everything from proto-science fiction to the genre’s global reach, Gunn’s encyclopedia features thousands of entries that bring together authors, themes, and landmark works in an epic compendium—perfect for readers who want the big picture.

If you were fascinated by the way The Science Fiction Encyclopedia situates stories in their broader historical and philosophical framework, you’ll love The Road to Science Fiction: From Gilgamesh to Wells. Gunn curates key texts from ancient epics to early 20th-century classics, providing commentary that explores the big questions—what science fiction is, what it means, and how it reflects humanity’s hopes and fears through the ages.