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| Written by | Susan Hood |
| Illustrator | Maggie Swanson |
| Published | 1996 |
| Publisher | Reader's Digest |
| Series | Sesame Street ABCs |
Bert Wonders Why is a Sesame Street storybook featuring Bert. The book is the "W" volume of the Sesame Street ABCs, a set of alphabet books published by Reader's Digest in 1996.