The book is still great, however the revision was the worst. I bought the book being as it was cheeper than the hardcover, and half the book was filled with this guy's (Jason Zweig's) insights on the reasons for the numerous tech companies bursting with the bubble. Everyone already knows what happened when the bubble burst. Its quite odvious that's all the revising author knows about securities, being as half the book was filled with comments about it. My advise, the extra money for the hardcover is worth not having to read the revisions.