| Way the Cookie Crumbled, The | Shaffer, Jody Jensen | History of Fun Stuff | Third Grade, |
| Way to the Zoo, The | Burningham, John | | Kindergarten, |
| Way We Do it in Japan | Iijima, Geneva Cobb | | Second Grade, |
| We Don’t Eat Our Classmates | Higgins, Ryan T. | | Kindergarten, |
| We Will Not Be Silent: The White Rose Student Resistance Movement That Defied Adolf Hitler | Freedman, Russell | | Secondary, |
| We’re Going on a Bear Hunt | Rosen, Michael | | First Grade, |
| We’re Not from Here | Rodkey, Geoff | | Fifth Grade, |
| We’ve Got a Job : The 1963 Birmingham Children’s March | Levinson, Cynthia | | Secondary, |
| Weasel | DeFelice, Cynthia | | Fifth Grade, |
| Weather | Rattini, Kristin Baird | National Geographic Readers: Level 1 | First Grade, |
| Weather | Mack, Lorrie | DK Eyewonder | Third Grade, |
| Weather Words and What They Mean | Gibbons, Gail | | Kindergarten, |
| Weaving of a Dream: A Chinese Folktale, The | Heyer, Marilee | | Fourth Grade, |
| Wednesday Surprise, The | Bunting, Eve | | Second Grade, |
| Wednesday Wars, The | Schmidt, Gary | | Secondary, |
| Wednesdays in the Tower | George, Jessica Day | Tuesdays at the Castle; 2 | Fourth Grade, |
| Weetamoo, Heart of the Pocassets, Massachusetts, 1653 | Smith, Patricia Clark | Royal Diaries | Secondary, |
| Weird But True Animals | National Geographic | National Geographic Kids | Fourth Grade, |
| Weird But True Food: 300 Bite-size Facts About Incredible Edibles | National Geographic | National Geographic Kids | Fourth Grade, |
| Weird But True Know-It-All: U.S. Presidents | DuMont, Brianna | National Geographic Kids | Secondary, |
| Weird But True Sports: 300 Wacky Facts About Awesome Athletics | National Geographic | National Geographic Kids | Fourth Grade, |
| Weird But True! (various numbers) | National Geographic | National Geographic Kids | Fourth Grade, |
| Weird But True! USA | National Geographic Kids | Weird But True | Fourth Grade, |
| Weird Sea Creatures | Marsh, Laura F. | National Geographic Readers: Level 2 | Second Grade, |
| Welcome Home, Bear: A Book of Animal Habitats | Na, Il Sung | | First Grade, |
| Well, I Can Top That | Cook, Julia | | Second Grade, |
| Wemberly Worried | Henkes, Kevin | | Second Grade, |
| Weslandia | Fleischman, Paul | | Third Grade, |
| West to a Land of Plenty | Murphy, Jim | Dear America | Fifth Grade, |
| Westing Game, The | Raskin, Ellen | | Sixth Grade, |
| Westmark | Alexander, Lloyd | Westmark Triology; 1 | Secondary, |
| Westward Expansion: An Interactive History Adventure | Lassieur, Allison | Interactive History Adventure | Fifth Grade, |
| Westward to Home | Hermes, Patricia | My America | Fifth Grade, |
| Whale of a Tale, A: All About Porpoises, Dolphins and Whales | Worth, Bonnie | Cat in the Hat Learning Library, The | First Grade, |
| Whale Who Won Hearts, The! : And More True Stories of Adventures with Animals | Skerry, Brian | National Geographic Kids: Chapters. | Fourth Grade, |
| Whales and Dolphins | Stamps, Caroline | DK Eye Wonder | Third Grade, |
| Whales: The Gentle Giants | Milton, Joyce | | Second Grade, |
| What a Bad Dream | Mayer, Mercer | Little Critter | Kindergarten, |
| What Cat is That?: All About Cats | Rabe, Tish | Cat in the Hat Learning Library, The | First Grade, |
| What Color Is Camouflage? | Otto, Carolyn | Let's-Read-and-Find-Out Science, Stage 2 | Second Grade, |
| What Color Is Camouflage? | Otto, Carolyn | Let's-Read-and-Find-Out Science; Stage 2 | First Grade, |
| What Columbus Found: It Was Orange it Was Round | Kurtz, Jane | | Kindergarten, |
| What Do Roots Do? | Kudlinski, Kathleen V. | | Kindergarten, |
| What do you do with a Tail Like This? | Jenkins, Steve | | First Grade, |
| What Happened at Midnight | Dixon, Franklin W. | Hardy Boys, The | Fourth Grade, |
| What Happens to a Hamburger | Showers, Paul | | Second Grade, |
| What Happens to our Trash? | Ward, D. J. | Let's-Read-and-Find-Out Science; Stage 2 | Second Grade, |
| What I Believe | Mazer, Norma Fox | | Secondary, |
| What If Everybody Did That? | Javernick, Ellen | | Kindergarten, |
| What If You Had An Animal Nose? | Markle, Sandra | | Second Grade, |
| What if you had Animal Ears!? | Markle, Sandra | | Second Grade, |
| What If You Had Animal Eyes? | Markle, Sandra | | Second Grade, |
| What If You Had Animal Feet? | Markle, Sandra | | Second Grade, |
| What if You Had Animal Hair? | Markle, Sandra | | Second Grade, |
| What if You Had Animal Teeth? | Markle, Sandra | | Second Grade, |
| What If You Had T. Rex Teeth? | Markle, Sandra | What if You Had? | Second Grade, |
| What is the Panama Canal? | Pascal, Janet B. | What Was? | Fourth Grade, |
| What is the Statue of Liberty? | Holub, Joan | What Was? | Fourth Grade, |
| What Is the Story of Frankenstein? | Keenan, Sheila | What is the Story Of? | Fourth Grade, |
| What is the Story of Hello Kitty? | Anderson, Kirsten | What is the Story Of? | Fourth Grade, |
| What Is the Story of Scooby-Doo? | Payne, M. D. | What is the Story Of? | Fourth Grade, |
| What Is the Story of Wonder Woman? | Korte, Steven | What is the Story Of? | Fourth Grade, |
| What is the Super Bowl? | Anastasio, Dina | What Was? | Fourth Grade, |
| What is the World Made Of? : All About Solids, Liquids, and Gases | Zoehfeld, Kathleen Weidner | Let's-Read-and-Find-Out Science | First Grade, |
| What Is the World Made Of? All About Solids, Liquids, and Gases | Zoehfeld, Kathleen Weidner. | Let's-Read-and-Find-Out Science; Stage 2 | First Grade, |
| What is the World Series? | Herman, Gail | What Was? | Fourth Grade, |
| What Jamie Saw* | Coman, Carolyn | | Secondary, |
| What Janie Found | Cooney, Caroline B. | | Secondary, |
| What Lives in a Shell? | Zoehfeld, Kathleen Weidner | Let's-Read-and-Find-Out Science | First Grade, |
| What Makes a Magnet? | Branley, Franklyn Mansfield | Let's-Read-and-Find-Out Science; Stage 2 | Second Grade, |
| What Pet Should I Get? | Seuss, Dr. | | Kindergarten, |
| What the Moon is Like | Branley, Franklyn Mansfield | Let's-Read-and-Find-Out Science | Third Grade, |
| What was D-Day? | Demuth, Patricia | What Was? | Fourth Grade, |
| What was Ellis Island? | Demuth, Patricia | What Was? | Fourth Grade, |
| What Was Hurricane Katrina? | Koontz, Robin Michal | What Was? | Fourth Grade, |
| What was Pearl Harbor? | Demuth, Patricia author. | What Was? | Fourth Grade, |
| What was Pompeii? | O'Connor, Jim | What Was? | Fourth Grade, |
| What Was the Age of the Dinosaurs? | Stine, Megan | What Was? | Fourth Grade, |
| What Was the Alamo? | Pollack, Pam | What Was? | Fifth Grade, |
| What was the Battle of Gettysburg? | O'Connor, Jim | What Was? | Fifth Grade, |
| What was the Boston Tea Party? | Krull, Kathleen | What Was? | Fourth Grade, |
| What Was the First Thanksgiving? | Holub, Joan | What Was? | Third Grade, |
| What was the Gold Rush? | Holub, Joan | What Was? | Fifth Grade, |
| What was the Great Chicago Fire? | Pascal, Janet B. | What Was? | Fourth Grade, |
| What was the Great Depression? | Pascal, Janet B. | What Was? | Fourth Grade, |
| What was the Hindenburg? | Pascal, Janet B. | What Was? | Fourth Grade, |
| What was the Holocaust? | Herman, Gail | What Was? | Fourth Grade, |
| What was the Lewis and Clark Expedition? | St. George, Judith | What Was? | Fifth Grade, |
| What was the March on Washington? | Krull, Kathleen | What Was? | Fourth Grade, |
| What was the San Francisco Earthquake? | Hoobler, Dorothy | What Was? | Fourth Grade, |
| What was the Underground Railroad? | McDonough, Yona Zeldis | What Was? | Fifth Grade, |
| What was the Vietnam War? | O'Connor, Jim | What Was? | Fourth Grade, |
| What was the Wild West? | Pascal, Janet B. | What Was? | Fourth Grade, |
| What Was. . . –collection | vary, authors | What's Their Story? | Fifth Grade, |
| What Were the Salem Witch Trials? | Holub, Joan | What was? | Fourth Grade, |
| What Were the Twin Towers? | O'Connor, Jim | What Was? | Fourth Grade, |
| What Would Happen? | Boyer, Crispin | National Geographic Kids | Fifth Grade, |
| What’s a Pair? What’s a Dozen? | Swinburne, Stephen R. | | Kindergarten, |
| What’s it Like to be a Fish? | Pfeffer, Wendy | | First Grade, |
| What’s So Bad About Gasoline?: Fossil Fuels and What They Do | Rockwell, Anne F. | Let's-Read-and-Find-Out Science; Stage 2 | Third Grade, |
