All of Stephen King's novels:
(1974) Carrie
(1975) Salem’s Lot
(1977) The Shining
(1977) Rage [As Richard Bachman]
(1978) The Stand [The Complete And Uncut Edition was released in 1990]
(1979) The Dead Zone
(1979) The Long Walk [As Richard Bachman]
(1980) Firestarter
(1981) Cujo
(1981) Roadwork [As Richard Bachman]
(1982) The Dark Tower I: The Gunslinger (Resumption) [An edited/revised edition was released in 2003]
(1982) The Running Man [As Richard Bachman]
(1983) Christine
(1983) Pet Sematary
(1984) Cycle Of The Werewolf [Illustrated Novel]
(1984) The Talisman [With Peter Straub]
(1984) Thinner [As Richard Bachman]
(1986) It
(1987) The Dark Tower II: The Drawing Of The Three (Renewal)
(1987) The Eyes Of The Dragon
(1987) Misery
(1987) Tommyknockers
(1989) The Dark Half
(1991) The Dark Tower III: The Waste Lands (Redemption)
(1991) Needful Things
(1992) Dolores Claiborne
(1992) Gerald’s Game
(1994) Insomnia
(1995) Rose Madder
(1996) Desperation
(1996) The Regulators [As Richard Bachman]
(1997) The Dark Tower IV: Wizard & Glass (Regard)
(1998) Bag Of Bones
(1999) The Girl Who Loved Tom Gordon
(2000) The Green Mile
(2000) The Plant [Serial Novel]
(2001) Black House [With Peter Straub]
(2001) Dreamcatcher
(2002) From A Buick 8
(2003) The Dark Tower V: Wolves Of The Calla (Resistance)
(2004) The Dark Tower VI: Song Of Susannah (Reproduction)
(2004) The Dark Tower VII: The Dark Tower (Reproduction, Revelation, Redemption, Resumption)
(2005) The Colorado Kid
(2006) Cell
(2006) Lisey's Story
(2007) Blaze [As Richard Bachman]
(2008) Duma Key
(2009) Under The Dome
(2011) 11/22/63
(2012) The Wind Through the Keyhole: A Dark Tower Novel
If you're curious about his short stories I suggest reading them all.
The collections are as follows:
(1978) Night Shift
(1982) Different Seasons
(1985) Skeleton Crew ["The Mist"]
(1990) Four Past Midnight
(1993) Nightmares & Dreamscapes
(1999) Hearts In Atlantis ["1960: Low Men In Yellow Coats"]
(2002) Everything's Eventual ["Everything's Eventual", "The Little Sisters Of Eluria"]
(2008) Just After Sunset
(2010) Full Dark, No Stars
Bold titles are officially connected with The Dark Tower Series
Nonfiction:
(1980) Danse Macabre
(2000) On Writing
(2004) Faithful: Two Diehard Boston Red Sox Fans Chronicle the Historic 2004 Season [With Stewart O'Nan]
Obviously this list isn't complete..Stephen has written many stories that he never published or can't be found in a book, whether they were released in a magazine, solely as an audiobook or some other format. If you're looking for more of his work then I suggest visiting his official website and checking out this section
here.