Eliyahu Goldratt's books (I have read Critical Chain and It's Not Luck as well as The Goal) are not as original as often claimed. They are very readable introductions, but a good project management text will cover most of what they do and more. The project management book that I have found most helpful is Project Management With Cpm, Pert and Precedence Diagramming; despite its age (1983) it covers a wider variety of techniques with more detail and less extraneous crud than any of the others I have seen (note I am still researching this area, anyone who has a favorite book can leave it in a comment). http://www.amazon.com/Project-Management-Pert-Precedence-Dia...

Jonathan Baron's Thinking and Deciding is one of the best books on improving your thinking in general that I have ever read. http://www.amazon.com/Thinking-Deciding-Jonathan-Baron/dp/05...