Aliens and Alien Societies (Science Fiction Writing Series)

World-Building (Science Fiction Writing)

Space Travel: A Writer's Guide to the Science of Interplanetary and Interstellar Travel (Science Fiction Writing Series)

World-Building (Science Fiction Writing Series)

The Craft of Writing Science Fiction That Sells

The Writer's Guide to Creating a Science Fiction Universe

Writing Monsters: How to Craft Believably Terrifying Creatures to Enhance Your Horror, Fantasy, and Science Fiction

Time Travel: A Writer's Guide to the Real Science of Plausible Time Travel

The Art of Language Invention: From Horse-Lords to Dark Elves, the Words Behind World-Building

The Planet Construction Kit

The Language Construction Kit