It is fairly easy to put together,  but they could put all of the parts hooked together. I thought it was missing some, until I looked at the shelves and found them taped to a shelf. It could be a little clearer about what end of the black 2 piece shelf clips goes upward. There is a flat bottom and a tapered top end. You can't put them together unless you match the side tabs, but you can put them on upside down.