I believe I ran across it on Fog Creek's book list which has some other good books as well.
Seriously, you're missing people.
It seems I am not alone:
quite a lot of results when typing this into google:
site:news.ycombinator.com Peter Drucker
You might also find Charles Handy to be interesting - he's sort of a business spiritualist.
But I don't think I'd qualify it as a business book. Inspirational for sure, but it's not about DOING business exactly.