Aside from the 74 screws needed to assemble this shelf piece by piece and over 2 hours of time it will not hold more than 30 or 40 lbs.  For the price, not a good buy.  If you like this style of shelf look elsewhere.  This product is superior in build and assembly for only $20 more. containerstore.com/s/shelving/linea-collection/white-linea-narrow-leaning-bookcase/12d?productId=10035807  

Pros: none
Cons: pore quality & time consuming assembly