Grids are so essential to design they can rarely be called a pattern, however you can assume playful And perhaps unpredicted can take on grids and features. This design is so intelligent and trippy—tricking you into contemplating you might be taking a look at the back flap of the book. https://share.evernote.com/note/65ef8aca-54c9-1304-2263-2d48a0c3dbde