Kim Jung-Gi is a Korean art instructor, cartoonist, and animator. This is his massive self-published sketchbook that everyone has been talking about. You may have seen the videos online; it is even more amazing in person.
This massive 650+ page tome is made up primarily of drawings and sketches. 122 pages reproduce actual sketchbook spreads. There are also almost 100 pages of comic book pages, character designs, and illustrations.
Like Terada's Rakugaking, this book screams out "You must own me!"
Includes a fold-out poster.
Book and poster are inside a custom cardboard box inside a sealed silver mylar bag.
Here is a flip-thru courtesy of DrBlackYang: