Kobayashi-San Chi No Maid Dragon Official Guidebook summary:

A complete compendium! This official guidebook tells you everything about "Kobayashi-san Chi no Maid Dragon" (as of now).Character profiles for humans and dragons / Recap of the story by volume / Dragon matching test / Guardian knowledge test / Collection of gorgeous illustrations by the best guest artists / Q&A with Coolkyoushinja / Drafts for Chapter 1 / Illustration gallery (in full color)... and more!It also includes a special chapter newly drawn!A super-supreme must-have for all Dragon Maid fans!!