Based on the pictures I thought that bookshelf would be modular.  It is not.  Otherwise it is very sturdy and well constructed.  It takes some time to assemble it but the instructions were very easy to follow.  If you are not at all handy, then the assembly may be a little challenging, but you should still be able to do it.  My 2 12 year old, who breaks almost everything he gets his hands on, hasn't been able to break it yet.  So I am going to have to say that it's a great piece of furniture as long as you don't expect it to be modular.