This is a nice seemingly well made bookcase but the instructions could be improved.  I was supposed to receive 4 shelves labeled “D” and one labeled “C” but all were labeled “D”.  Turns out one was, in fact, the “C” shelf differentiated by a small drill hole on the side edge of the shelf into which the back braces were to be screwed.  I had to rearrange the shelving after I discovered the error.  Also, why in the world did the manufacturer place a large adhesive label on the top of the middle shelf?  I hope Goo-Gone comes to my rescue.  Despite these problems, I do like the unit and would recommend it to anyone.