- W Is For Webster
- W podróży ze skrzypcami. Opowieść o Henryku Wieniawskim
- Wagon Train
- Walka o wolność
- War, Cattle, and Cowboys: Texas as a Young State
- Warrior Scarlet
- Warriors
- Washington D.C. From A-Z
- Washington Monument
- Washington's Birthday
- Washington, DC, History for Kids
- Wave Me Goodbye
- Wayne Gretzky
- We Are Your Children Too
- We Gather Together
- We Had to Be Brave: Escaping the Nazis on the Kindertransport (Scholastic Focus)
- We March
- We Move the World
- We Must Not Forget: Holocaust Stories of Survival and Resistance (Scholastic Focus)
- We the People
- We Want to Go to School!
- We Will Remember Them
- Weapons
- Weltgeschichte(n) - Zeit der Finsternis: Der Zweite Weltkrieg
- Weltgeschichte(n) - Weg in die Dunkelheit. Der Erste Weltkrieg
- What Are Castles and Knights?
- What Does the Constitution Say?
- What Happened When in the World
- What If You Met a Cowboy?
- What If You Met a Knight?
- What Is Juneteenth?
- What Is the Constitution?
- What Is the Declaration of Independence?
- What Is the Panama Canal?
- What Is the Statue of Liberty?
- What Was D-Day?
- What Was Ellis Island?
- What Was Hurricane Katrina?
- What Was Pearl Harbor?
- What Was Pompeii?
- What Was the Age of Exploration?
- What Was the Alamo?
- What Was the Battle of Gettysburg?
- What Was the Berlin Wall?
- What Was the Bombing of Hiroshima?
- What Was the Boston Tea Party?
- What Was the Gold Rush?
- What Was the Great Chicago Fire?
- What Was the Great Depression?
- What Was the Holocaust?
- What Was the Ice Age?
- What Was the Lewis and Clark Expedition?
- What Was the March on Washington?
- What Was the San Francisco Earthquake?
- What Was the Turning Point of the Civil War?: Alfred Waud Goes to Gettysburg
- What Was the Underground Railroad?
- What Was the Vietnam War?
- What Was the Wild West?
- What Was Woodstock?
- What Were the Roaring Twenties?
- What Were the Salem Witch Trials?
- What Were the Twin Towers?
- What's the Big Deal About Americans
- What's the Big Deal About Elections
- What's the Big Deal About First Ladies
- What's the Big Deal About Freedom
- When Angels Sing
- When Fishes Flew
- When Forests Burn
- When Washington Crossed the Delaware
- Where Are the Great Pyramids?
- Where Is Alcatraz?
- Where Is Chichen Itza?
- Where Is Easter Island?
- Where Is Machu Picchu?
- Where Is Mount Rushmore?
- Where Is the Colosseum?
- Where Is the Empire State Building?
- Where Is the Grand Canyon?
- Where Is the Great Wall?
- Where Is the Tower of London?
- Where Is the White House?
- Where People Live
- Where Were the Seven Wonders of the Ancient World?
- Which one is Malala
- Who Is Jimmy Carter?
- Who Was Queen Elizabeth II?
- Who Says Women Can't Be Doctors?
- Who Wants to Be a Pirate?
- Who Wants to Be a Princess?
- Who Was Betsy Ross?
- Who Was Davy Crockett?
- Who Was E. B. White?
- Who Was Ferdinand Magellan?
- Who Was Genghis Khan?
- Who Was Harriet Beecher Stowe?
- Who Was Leif Erikson?
- Who Was Ponce de León?
- Who Was Robert E. Lee?
- Who Were Stanley and Livingstone?
- Who Were the Signers of the Declaration of Independence?
- Why Do We Wear Clothes?
- Why Longfellow Lied
- Why Would A Dog Need A Parachute? Questions and answers about the Second World War
- Wierusz i Nikt
- Wilbur Wright Meets Lady Liberty
- Wild Cat, Pet Cat
- Wild Horses
- Wild West
- Willa
- William McKinley: The President Who Wore Carnations
- Winston Churchill
- With Books and Bricks
- Wolfgang Amadeus Mozart
- Women Explorers
- Women in the Old West (A True Book)
- Women in World War Two (A True Book)
- Women of the Frontier
- Women Who Changed the World
- Women Who Changed the World: 50 Amazing Americans
- Woodrow Wilson
- Words Set Me Free
- Working for Freedom
- World History 2: Homo Sapiens
- World History in Twelve Hops 10: Renaissance
- World History in Twelve Hops 11: Industrial Revolution
- World History in Twelve Hops 12: Space Age (final episode)
- World History in Twelve Hops 1: Dinosaurs
- World History in Twelve Hops 3: Ancient Egypt
- World History in Twelve Hops 4: Greek Olympic Games
- World History in Twelve Hops 5: Roman Legion
- World History in Twelve Hops 6: Middle Ages
- World History in Twelve Hops 7: Silk Road
- World History in Twelve Hops 8: Aztec Empire
- World History in Twelve Hops 9: Native Americans
- World Landmarks
- World of Gods & Goddesses
- World of Myths & Legends
- World War 2
- World War I
- World War I for Kids
- World War II
- World War II for Kids
- World War Two Collection: Volume 2
- Wretched Washington
- Write to Me
- Wu Zetian: First Empress of China