I don’t know who designed this bookcase, but it was a nightmare to assemble. I’ve put together dozens of pieces of furniture, and if I had purchased two of these, I would have sent the second one back! The entire thing is put together with 2 inch screws, and my drill just kept trying to strip the screws, so I had to do the entire thing by hand. The hexagonal pieces were the worst part because the screws didn’t go in exactly as they were supposed to. Twice the screws ended up cracking through the side of the piece.