Category: 3 – SHELF it (All Categories are 1 – Read ASAP!, 2 – BUY it!, 3 – SHELF it, 4 – SOMEDAY it)
Comments: Fantastic book for anyone who is just about to enter into his/her first real job. It is a collection of rules that are fundamental to the working world but may not be all that obvious when you start out. It was written in the 1950s but is probably as relevant today as it was then.
Add on Mar 16, 2016: I don’t remember much but do remember finding it useful as a student. Then again, I don’t know if I’d change my recommendations having spent a few years working.
Marler's Observatory 