These are lovely. I have 4 total, but am downsizing so selling 2. They are 2 separate units but will only be sold together. $600 for both. The shelves are slightly angled downward for the books and include a slight gab between the back of the individual shelf and the backside of the bookcase to allow air to preserve the books. The individual shelf height is adjustable. They are large and heavy. The measurements are: 94 inches tall, 36.5 inches wide, shelf depth is 10.5 inches. These dimensions are PER UNIT. They are a gem and would make for a great home library.