This is a Japanese-language illustration (art) book.
The rich illustrations in this hard-cover book are completed with a limited earth-tones palette that suits the soft lines and youthful faces of the characters of "Haibane Renmei". Yoshitoshi Abe is probably best known for his designs for "Serial Experiments Lain", and his style is clear throughout this volume. 80 pages; most illustrations are in color though a few accompanying sketches are in black and white. Some text, all in Japanese, but as this is an illustration book the text is minimal.