This is a Japanese-language illustration (art) book.
Tite Kubo's first illustration book for his "Bleach" anime/manga series titled "All Colour But The Black" (although there is plenty of black in his art here!) is filled with full-page colorful illustrations of various characters from the "Bleach" anime/manga series. There are also plenty of two-page spreads of his amazing art in the book, as well as pencil sketches of chapter 181 of the "Bleach" manga.