This is a Japanese-language illustration (art) book.
To complement the collection of monochrome illustrations from Takehiko Inoue's samurai manga "Vagabond" ("Sumi," linked below), Kodansha offers this massive collection of watercolor art. A full 160 pages of artwork -- many of the pieces created especially for this book, and the rest mostly from cover art -- show that Inoue is as much a master of color as he is of black and white. Every turn of a page brings new treasures to drool over, making this book a must for anyone who loves Inoue, Edo-period Japan, or just beautiful artwork.