I had a small area of wasted corner space in my kitchen.  Many cook books since I love to cook but no place to put them. Stacking two of these book cases together in the corner space worked out perfectly.  I can easily see all my cook books and the book case does not interfere with the working area in the kitchen.  They were beyond my expectations when it came to assembly.  There really wasn't any real assembly except to insert the little pegs in the pre-drilled holes so I could attach the two cases together. The shelves just pop up into place. No tools requires except maybe a little rubber hammer to make sure the pegs are secure but really not even that. Once the books were in the place the weight pushed the two cases together without further effort.