- Who Was P. T. Barnum?
- Who Was Pablo Picasso?
- Who Was Paul Revere?
- Who Was Pete Seeger?
- Who Was Ponce de León?
- Who Was Princess Diana?
- Who Was Queen Elizabeth?
- Who Was Queen Victoria?
- Who Was Rachel Carson?
- Who Was Richard Nixon?
- Who Was Roberto Clemente?
- Who Was Ronald Reagan?
- Who Was Rosa Parks?
- Who Was Ruth Bader Ginsburg?
- Who Was Ruth Bader Ginsburg?: A Who Was? Board Book
- Who Was Sally Ride?
- Who Was Sam Walton?
- Who Was Seabiscuit?
- Who Was Selena?
- Who Was Sojourner Truth?
- Who Was Stan Lee?
- Who Was Stephen Hawking?
- Who Was Steve Jobs?
- Who Was Susan B. Anthony?
- Who Was the Greatest?: Muhammad Ali
- Who Was Theodore Roosevelt?
- Who Was Thomas Alva Edison?
- Who Was Thomas Jefferson?
- Who Was Ulysses S. Grant?
- Who Was Walt Disney?
- Who Was Walt Disney?: A Who Was? Board Book
- Who Was Walt Whitman?
- Who Was William Shakespeare?
- Who Was Winston Churchill?
- Who Was Wolfgang Amadeus Mozart?
- Who Were the Beatles?
- Who Were the Brothers Grimm?
- Who Were The Three Stooges?
- Who Were the Wright Brothers?
- Whoosh!
- Why Beethoven Threw the Stew
- Why Don't We: In the Limelight
- Why Longfellow Lied
- Why We Wear a Mask
- Wilbur Wright Meets Lady Liberty
- Wild Boy
- Wild Horse Annie
- Wildlife Wong and the Orangutan
- Will's Words
- Willa
- William C. Burns
- William Caxton
- William Kamkwamba: Powering His Village
- William McKinley: The President Who Wore Carnations
- William Penn
- Wilma Rudolph
- Wilma Rudolph: Against All Odds
- Wilma Rudolph: Track and Field Champion
- Winston Churchill
- Women Artists A to Z
- Winston Churchill
- Women Artists A to Z
- Women in Art
- Women in Biology
- Women in Chemistry
- Women in Physics
- Women in Sports
- 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: 50 Amazing Americans
- Women Who Dared
- Women Who Launched the Computer Age
- Women Win the Vote!: 19 for the 19th Amendment
- Wonderkids
- Wood, Wire, Wings
- Woodlawn Giants
- Woodrow Wilson
- Woody Guthrie
- Words Set Me Free
- Work It, Girl: Beyoncé Knowles
- Work It, Girl: Michelle Obama
- Work It, Girl: Oprah Winfrey
- World Cup Women
- World War One
- World War Two
- WRECKS and WRECKOLLECTIONS TAMERLANE
- Write to Me
- Writings to Young Women from Laura Ingalls Wilder - Volume One