Browse and search functions need work

The is the best reading app out there, but with all their success, why cant they make decent search and browse functions so were not always looking at the same books?

Web site claims that some books are read by famous voices, but there is no way to search for them.

Some books/authors (how many?) are not included in the search engine. Diana Wynne Jones for example.

Also, audio books must have a table of contents for easier navigation.

_Seven_ about Epic - Kids' Books & Reading, v2.02