Interactive ebooks have many benefits in the classroom. Obviously they can be used like any PDF or print book but Interactive ebooks have benefits to students not available in print. Audio plays a big role in helping ELL, ESL students of all ages. Struggling readers are more engaged when using an interactive book for reading. Special needs students also gain benefits so a good Interactive book goes a long way within a school.
This Teachers Resource has some great tips on how to get the most out of Interactive teaching and learning.