Old, but an academic and a practitioner get together get together to try to remedy the shortcomings of academic engineering courses. Has great deal to say about drawing, and practical hydraulics, but very sketchy and partial indeed when it comes to unit op design - "vessels" covers everything from reactors to storage tanks. Has useful stuff about trace heating lagging and electrical power and motors. Though partial and old, it has useful stuff that none of the others cover. I'm going to expand upon and update some of this unique content in my book.