Great bookshelf! Love the design and looks. I usually build furniture like this myself in our household, and this was actually not as difficult as you'd think.  One thing previously mentioned in a previous review: board #10 can easily be installed backwards. The directions are clear, except for this one step.  Another note: The bookcase is not structurally sound and wobbly/flexy until the very, very end. I would suggest moving it as little as possible until it's finished with the metal cross bars on the back.