- Stanford Achievement Test, Ed. 1922Author: Truman Lee Kelley, G. M. (Giles Murrel) Ruch, Lewis M. (Lewis Madison) TermanReleased on Project Gutenberg: August 29, 2007
- Stanford Stories: Tales of a Young UniversityAuthor: Charles K. (Charles Kellogg) Field, Will IrwinReleased on Project Gutenberg: March 2, 2008
- Star BornAuthor: Andre NortonReleased on Project Gutenberg: May 27, 2006
- Star HunterAuthor: Andre NortonReleased on Project Gutenberg: August 21, 2006
- Star SurgeonAuthor: Alan Edward NourseReleased on Project Gutenberg: June 2, 2006
- Star-Dust: A Story of an American GirlAuthor: Fannie HurstReleased on Project Gutenberg: February 1, 2006
- Starlight Ranch, and Other Stories of Army Life on the FrontierAuthor: Charles KingReleased on Project Gutenberg: July 27, 2008
- Starr King in CaliforniaAuthor: William Day SimondsReleased on Project Gutenberg: November 1, 2003
- Starr, of the DesertAuthor: B. M. BowerReleased on Project Gutenberg: June 1, 2004
- State of the Union AddressesAuthor: George WashingtonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: John AdamsReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Thomas JeffersonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: James MadisonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: James MonroeReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Andrew JacksonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Martin Van BurenReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: John TylerReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: James K. (James Knox) PolkReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Zachary TaylorReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Millard FillmoreReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Franklin PierceReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: James BuchananReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Abraham LincolnReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Andrew JohnsonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Ulysses S. (Ulysses Simpson) GrantReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Rutherford Birchard HayesReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Chester Alan ArthurReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Grover ClevelandReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Benjamin HarrisonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: William McKinleyReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Theodore RooseveltReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: William H. (William Howard) TaftReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Woodrow WilsonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Warren G. (Warren Gamaliel) HardingReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Calvin CoolidgeReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Herbert HooverReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Franklin D. (Franklin Delano) RooseveltReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Harry S. TrumanReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Dwight D. (Dwight David) EisenhowerReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: John F. (John Fitzgerald) KennedyReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Lyndon B. (Lyndon Baines) JohnsonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Richard M. (Richard Milhous) NixonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Gerald R. FordReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Jimmy CarterReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Ronald ReaganReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: George BushReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: Bill ClintonReleased on Project Gutenberg: February 1, 2004
- State of the Union AddressesAuthor: George W. (George Walker) BushReleased on Project Gutenberg: February 1, 2004
- State of the Union Addresses (1790-2008)Author: United States. PresidentsReleased on Project Gutenberg: February 1, 2004
- State of the Union Addresses of John Quincy AdamsAuthor: John Quincy AdamsReleased on Project Gutenberg: February 1, 2004
- Statement on Bahá'u'lláhAuthor: Bahá'í International CommunityReleased on Project Gutenberg: September 18, 2006
- StatesmanAuthor: Plato, Benjamin JowettReleased on Project Gutenberg: May 1, 1999
- Station Amusements in New ZealandAuthor: Lady (Mary Anne) BarkerReleased on Project Gutenberg: June 1, 2004
- Station Life in New ZealandAuthor: Lady (Mary Anne) BarkerReleased on Project Gutenberg: July 1, 2004
- Statistical, Historical and Political Description of the Colony of New South Wales and its Dependent Settlements in Van Diemen's Land: With a Particular Enumeration of the Advantages Which These Colonies Offer for Emigration, and Their Superiority in Many Respects Over Those Possessed by the United Author: W. C. (William Charles) WentworthReleased on Project Gutenberg: April 11, 2005
- Steam, Its Generation and UseAuthor: Babcock & Wilcox CompanyReleased on Project Gutenberg: September 18, 2007
- Steam, Steel and ElectricityAuthor: Steele, James W.Released on Project Gutenberg: April 1, 2005
- Steep TrailsAuthor: John Muir, William Frederic BadèReleased on Project Gutenberg: September 1, 1995
- Stella Fregelius: A Tale of Three DestiniesAuthor: H. Rider (Henry Rider) HaggardReleased on Project Gutenberg: April 22, 2006
- Step by Step; Or, Tidy's Way to FreedomAuthor: American Tract SocietyReleased on Project Gutenberg: September 1, 1997