Series
| Series Name | Release Date | Product Count |
|---|---|---|
| Weather Watch | 2018-08-01 | 5 |
| Weather Watchers | 2010-01-01 | 7 |
| Weird and Wonderful Animals | 2019-12-15 | 9 |
| Wellness Workshop | 2023-12-15 | 7 |
| Wendy's Weather Warriors | 2010-09-01 | 7 |
| Werewolf Council | 2017-09-01 | 7 |
| Whales | 2005-09-01 | 14 |
| What's It Like Out? | 2008-01-01 | 7 |
| What We Stand For | 2014-08-01 | 7 |
| Who Would Win? | 2023-08-01 | 21 |
| Wilderness Adventures | 2023-08-01 | 7 |
| Wild STEM | 2023-12-15 | 7 |
| Wild Water | 2015-08-01 | 7 |
| Wild Weather | 2017-12-15 | 7 |
| Winicker Wallace | 2017-12-15 | 5 |
| Wizards of Waverly Place | 2010-09-01 | 9 |
| Wolverine: First Class | 2009-09-01 | 14 |
| Women in Science | 2012-09-01 | 14 |
| Women in Sports | 2017-09-01 | 7 |
| Women in STEM | 2016-08-15 | 7 |
United States Encyclopedias
World of Mythical Beings
Captives of the Reich