Firstly, you must have a drill. There are 70 easily strippable screws. It would take weeks to put this together with a screw driver. Oh, and you only get the exact amount of screws don’t let one roll somewhere.  Secondly, this is the weakest particle board I’ve ever seen. If you don’t get the screws precisely in the correct spot, it will chip away along with the fake veneer (see attached photos). Also, have a second person to help and hold awkward pieces together while you drill them into place. I have put together my fair share of annoying furniture. But this, my friends is the worst. Two days of work for a tiny bookshelf. Good luck and may the odds be ever in your favor.