Talk:Chapter books/@comment-24709629-20140519020631/@comment-188360-20140519021005

The Celestia and Luna Chronicles are definitely canon, because they were written by Amy Keating Rogers. Plus they include the journal entries from the Mane Six from the show.

As for Daring Do, I believe that's also canon. I mean, they're written by G.M. Barrow writing as A.K. Yearling. Plus, they include appearances by both Ahuizotl and Caballeron.