This is a Japanese-language illustration (art) book.
This set contains the 240-page book "Monster Hunter Illustrations: Color" and the 64-page book "Monster Hunter Illustrations: Monochrome," covering illustrations from all "Monster Hunter" video games released up until the time of publication. The color book features illustrations of the world, monsters, weapons, characters, title logos, package graphics, comments from illustrators, and more, while the monochrome book covers illustrations of monsters, monster parts, characters, action scenes, NPCs (non-playable characters), clothing, and more. Both softcover books are packaged inside a slip case. All text is in Japanese.