I tried to get into "Everything I Needed to Know I learned in Kindergarten" but found it to be an unenaging spate of personal opinion on the part of the author.
I did read "Who Moved My Cheese" recently, and enjoyed that. If you haven't read it, it's about accepting change, letting go of old situations that have died, and moving on to new and usually better circumstances.
I'm about to read "Critical Chain" by Eli Goldratt, which is his application of the Theory of Constraints to project management. Just finished a course in Project Management and am finding myself involved in more and more projects lately, so I think it'll be a good read.