- W. E. B. Du Bois
- Walk Toward the Rising Sun
- War
- War Dogs
- War Dogs: Tales of Canine Heroism, History, and Love
- War in the Garden of Eden
- War in the Ring
- War on the Prairie
- Warhead
- Warrior Dog (Young Readers Edition)
- Warriors
- Washington Monument
- We Are Makers
- We Are Still Here!
- We Live Inside Maps Part 1
- We Live Inside Maps Part 2
- We The People
- We the People: Founding Documents
- We Were There, Too!
- We'll Soon Be Home Again
- We're Alive and Life Goes On
- We're Better Than This: Young Readers' Edition
- Welcome to ancient Greece
- West Meets East
- What Can a President Really Do?
- What Happened When in the World
- What Is Congress?
- What Is Earth Day?
- What Is Immigration?
- What Is Rock and Roll?
- What Is the Constitution?
- What Is the Declaration of Independence?
- What Is the Panama Canal?
- What Is the Role of the White House Press Secretary?
- What Is the Stanley Cup?
- What Is the Statue of Liberty?
- What Is the Women's Rights Movement?
- What Is the World Series?
- What Was D-Day?
- What Was Ellis Island?
- What Was Hurricane Katrina?
- What Was Pearl Harbor?
- What Was Pompeii?
- What Was Stonewall?
- What Was the Age of Exploration?
- What Was the Age of the Dinosaurs?
- 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 Harlem Renaissance?
- 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 Plague?
- What Was the San Francisco Earthquake?
- What Was the Titanic?
- 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 So Great About King Tut?
- What's So Great About Queen Elizabeth I?
- What's So Great About Sacagawea?
- What's So Great About Shakespeare?
- When Can We Go Back to America?
- When The World Was Ours
- When You Grow Up to Vote
- Where Are the Great Pyramids?
- Where Are You Really From?
- Where Do Presidents Come From?
- Where Is Alcatraz?
- Where Is Area 51?
- Where Is Chichen Itza?
- Where Is Easter Island?
- Where Is Machu Picchu?
- Where Is Mount Rushmore?
- Where Is the Colosseum?
- Where Is the Eiffel Tower?
- Where Is the Empire State Building?
- Where Is the Grand Canyon?
- Where Is the Great Wall?
- Where Is the Kremlin?
- Where Is the Mississippi River?
- Where Is the Parthenon?
- Where Is the Taj Mahal?
- Where Is the Tower of London?
- Where Is the White House?
- Where Is Walt Disney World?
- Where Were the Seven Wonders of the Ancient World?
- Where Is Walt Disney World?
- Where Were the Seven Wonders of the Ancient World?
- Which Way to the Wild West?
- Who Did It First? 50 Scientists, Artists, and Mathematicians Who Revolutionized the World
- Who Is Ralph Lauren?
- Who Pays Taxes?
- Who Sparked the Montgomery Bus Boycott?: Rosa Parks
- Who Was Alexander Hamilton?
- Who Was Alexander the Great?
- Who Was Amelia Earhart?
- Who Was Babe Ruth?
- Who Was Ben Franklin?
- Who Was Benedict Arnold?
- Who Was Catherine the Great?
- Who Was Che Guevara?
- Who Was Clara Barton?
- Who Was Daniel Boone?
- Who Was Dr. Seuss?
- Who Was Ferdinand Magellan?
- Who Was Fidel Castro?
- Who Was Franklin Roosevelt?
- Who Was George Washington?
- Who Was H. J. Heinz?
- Who Was Harriet Tubman?
- Who Was Henry VIII?
- Who Was Jane Austen?
- Who Was Johnny Appleseed?
- Who Was King Tut?
- Who Was Leif Erikson?
- Who Was Leonardo da Vinci?
- Who Was Levi Strauss?
- Who Was Lewis Carroll?
- Who Was Marco Polo?
- Who Was Marie Antoinette?
- Who Was Maurice Sendak?
- Who Was Milton Bradley?
- Who Was Napoleon?
- Who Was Neil Armstrong?
- Who Was Norman Rockwell?
- Who Was P. T. Barnum?
- Who Was Paul Revere?
- Who Was Pete Seeger?
- Who Was Queen Victoria?
- Who Was Richard Nixon?
- Who Was Robert E. Lee?
- Who Was the Girl Warrior of France?: Joan of Arc
- Who Was Theodore Roosevelt?
- Who Was Walt Whitman?