Note: There are other series with the same name: The X-Files, The X-Files (fanfiction)

• Series: The X-Files (nonfiction) Series Record # 42990
• Sub-series of: The X-Files Universe

• The X-Files (nonfiction)
  • X-Writers (1995) [ES] by Paula Vitaris
  • The Science of the X-Files (1996) [NF] by Michael White
  • The Science of the X-Files (1998) [NF] by Jeanne Cavelos
  • Introduction (Trust No One) (2015) [ES] by Jonathan Maberry also appeared as:
    • Translation: Einleitung (Vertrauen Sie niemandem) [German] (2016)
  • Introduction (The Truth Is Out There) (2016) [ES] by Dean Haglund