This is a great video demonstration of how to assemble cabinets that are in a box. They call these “ready to assemble” cupboards. The tools needed for putting together these RTA (ready to assemble) cabinets are a hammer, drill with various bits, utility knife, and a Phillips head screw driver.
read Putting Together Cabinets From Box

I have been in the cupboard manufacturing business for many years. I found this video which demonstrates just how much work actually goes into fabricating cabinets. There are literally thousands of different applications and things I’ve learned through the years that have brought me to the place of being considered a professional or fabricating expert. read Being a Cabinet Maker