"The March of Folly, by historian Barbara Tuchman."

Brilliant book. I have it at home - AND at the office. I've a small "professional lending library" at my office (the result of what I do for a living). It is on the shelf along with Sun Tzu's "Art of War", Mushashi's "Book of Five Rings", and Keegan's "Face of Battle". There are actually some books that relate to what I do as well. I have folks joining the group start with those, and work their way down the line. (Much easier to read Tuchman than dry computer manuals with the same lesson.)

Cheers -

Pete