I read Joel's book last week while on vacation and found it very enlightening. I like all the pointers in it and have discovered I have been following some of his keys points for a while. But after reading it I picked up a book called "The Art of Innovation : Lessons in Creativity from Ideo" (Doubleday; ISBN: 0385499841). Great book for people to read. It doesn't cover software as much as the process IDEO has found to promote a more innovative workplace. Also some interesting ideas that roughly parallel Joel's thinking. If you have time I would say read this book.
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