This is a Japanese-language illustration (art) book.
'Cheesecake' is the operative word in this description; the book is nothing but artwork of scantily-clad anime-style girls showing themselves off. Nothing more explicit than a nipple or two. Included is a pattern for a3-D 'paper craft' girl that you can build yourself. The only text is on the paper craft parts, and that's in Japanese, but she shouldn't be too difficult to figure out!