- Sabbath in Puritan New England
- Sacajawea
- Sachiko
- Saga of the Sioux
- Sailors, Whalers, Fantastic Sea Voyages
- Sam Bass - A Dead Man's Hand, Aces and Eights
- Samuel de Champlain
- Samuel's Journey
- Samurai Rising
- Sapiens A Graphic History, Volume 1
- Save the People!
- Saving Earth
- Saving Lady Liberty
- Scarecrow Army
- Scheherazade Cat - The Story of a War Hero
- School for Barbarians
- Scottish Criminals
- Scottish History
- Scottish Women A Very Peculiar History
- Season of Rage
- Secrets of the Chinese Palace
- Seeking Freedom
- Senegal
- September 11, 2001: A Day In History
- Setting the Stage for the American Revolution
- Settling and Unsettling the West
- Seven Voyages
- Seventh Grade Social Science Quizzes
- Shackleton: The Boss
- She Dared
- Shipwrecks, Monsters, and Mysteries of the Great Lakes
- Showdown Underdogs
- Showdown: Rivalries
- Si yo fuera un nino de la antigua China
- Si yo fuera un niño del antiguo Egipto
- Si yo fuera un niño del antiguo Grecia
- Si yo fuera un niño del antiguo Roma
- Siddhartha
- Sigmund Freud
- Sigurd fortæller om genforeningen
- Sigurd fortæller om kongerækken
- Silent in an Evil Time
- Silent Spring
- Silver
- Sinking City
- Sir Isaac Newton
- Six Days in October
- Sixth Grade Social Science Quizzes
- Smithsonian Dinosaurs and Other Amazing Creatures from Deep Time
- Snow Falling in Spring
- Snowmobile
- So, You Want to Be a Coder?
- So, You Want to Be a Leader?
- Somewhere There Is Still a Sun
- Souvenirs de voyage en Suisse, en Espagne, en Écosse, en Grèce, en Océanie, en Chine, en Perse, en É...
- Spaceman (Adapted for Young Readers)
- Spearhead (Adapted for Young Adults)
- Special Forces
- Spies
- Stamped
- Stamped: Racism, Antiracism, and You
- Standing Tall: The Extra/Ordinary Life of Mizuko Takahashi Nomura
- Stanley in Africa
- State Guides to Birds
- State Guides to Capitals
- State Guides to Flags
- State Guides to Flowers
- State Guides to Historic Monuments
- State Guides to Trees
- Statue of Liberty
- Stegosaurus: A History Just for Kids!
- Steve Young (In the Huddle with )
- Still I Rise
- Stitch by Stitch
- Stonewall: Breaking Out in the Fight for Gay Rights
- Storia interattiva - La seconda guerra mondiale
- Storia Interattiva 2
- Stories for Boys Who Dare to Be Different