Refine search by Audience, e.g. Adult or Juvenile.
When I run a query on ProQuest Ebooks with the keyword "India," for example, the first results I get are clearly written for a juvenile audience. It wouldn't be appropriate for high school students to cite those results for an assignment and yet it could be easy for them to unwittingly use those titles. Likewise, a middle schooler conducting research on India should be able to filter for results that best match her reading level / age. The lack of this distinction is a significant issue and something that could substantially limit student use.
Thank you for your suggestion. The Ebook Central team is reviewing this idea to determine how it might fit into our future plans. We aren't able to provide a timeline for these ideas, but be sure to check back often and vote for the ideas you support in order to receive status and comment updates.
Best,
Sarah Breiding
Product Owner