- Series: Firefly non-fiction Series Record # 50671
- Sub-series of: Firefly Universe
- Firefly non-fiction
- Finding Serenity: Anti-Heroes, Lost Shepherds and Space Hookers in Joss Whedon's Firefly (2005) [NF] by Jane Espenson
- Firefly: The Official Companion, Volume One (2006) [NF] by Abbie Bernstein and Bryan Cairns and Karl Derrick and Tara Di Lullo
- Firefly: The Gorramn Shiniest Dictionary and Phrasebook in the 'Verse (2016) [NF] by Monica Valentinelli
- Firefly Encyclopedia (2018) [NF] by Monica Valentinelli
- Firefly Essays
- We're All Just Floating in Space (unknown) [ES] by Lyle Zynda
- More Than a Marriage of Convenience (unknown) [ES] by Michelle West [only as by Michelle Sagara West]
- Unofficial Glossary of Firefly Chinese (unknown) [ES] by Kevin M. Sullivan
- Kaylee Speaks: Jewel Staite on Firefly (unknown) [ES] by Jewel Staite
- Listening to Firefly (unknown) [ES] by Jennifer Goltz
- Just Shove Him in the Engine, or The Role of Chivalry in Joss Whedon's Firefly (unknown) [ES] by John C. Wright
- I Want Your Sex (unknown) [ES] by Nancy Holder
- The Captain May Wear the Tight Pants, but It's the Gals Who Make Serenity Soar (unknown) [ES] by Robert B. Taylor
- Whores and Goddesses (unknown) [ES] by Joy Davidson
- Serenity and Bobby McGee (unknown) [ES] by Mercedes Lackey
- "The Train Job" Didn't Do the Job (unknown) [ES] by Keith R. A. DeCandido
- Who Killed Firefly? (unknown) [ES] by Ginjer Buchanan
- The Rise and Fall (and Rise) of Firefly (unknown) [ES] by Glenn Yeffeth
- Asian Objects in Space (unknown) [ES] by Leigh Adams Wright
- The Heirs of Sawney Beane (unknown) [ES] by Lawrence Watt-Evans
- The Reward, the Details, the Devils, the Due (unknown) [ES] by Larry Dixon
- Introduction (Finding Serenity: Anti-Heroes, Lost Shepherds and Space Hookers in Joss Whedon's Firefly) (unknown) [ES] by Jane Espenson
- Firefly vs. The Tick (2005) [ES] by Don DeBrandt
- "Thanks for the Reenactment, Sir" (2005) [ES] by Tanya Huff
- Star Truck (2005) [ES] by David Gerrold
- Chinese Words in the 'Verse (2005) [ES] by Kevin M. Sullivan
- Mirror/Mirror: A Parody (2005) [ES] by Rachel Caine [only as by Roxanne Longstreet Conrad]