Below is a thumbnail gallery of all of the books we currently have referenced for How to Train Your Dragon 3: The Hidden World, with the oldest book at the top of the list, and the most recent at the bottom. Click on the cover image of a book to open the individial information page for that book, and to see if any sample reference images have been uploaded for it. If there are images you would like to add to the site or certain books you'd like to see become e-books, send us a message through our Contact Us page.     How to Train Your Dragon 3: The Hidden World How to Train Your Dragon 3: The Hidden World Giant Activity Pad Activity Bag Coloring and Activity Book Coloring & Activity Book Coloring & Activity Book Coloring & Activity Book Coloring Book Coloring Adventures Below is just a sample of the authentic books we have listed on eBay: If we don't preserve them, who would?