Helena Mayer is an author that has written many children's books. For Phineas and Ferb, she has written Wild Surprise, a chapter book novelization of the episodes "Candace Loses Her Head" and "Mom's Birthday".
The following is a summary of the properties she has written books for. Not all of them are specifically "junior novelizations".
Junior novelizations of Disney movies
- Bedtime Stories
Junior novelizations of other movies
- Tooth Fairy (Dwayne Johnson movie)
Independent novels and books
- Lisa Frank: A Star is Born
- The fortifications of Cartagena de Indias: Strategy and history