While those posts will tell you a lot about the book . . . there's no substitute for reading it yourself. I believe there's a huge amount to think about (and learn from) in it.
By the way, I've been giving links to Amazon, just for convenience. When I'm buying a used book I also check Thriftbooks, since they often have great prices and free shipping (they work with independent bookstores from all over the country). My copy of this book came from them, although I see right now that it's out of stock (they have an earlier edition, but I'm not sure that's the same). You may have other places to look as well–let us know if you do!
A new series coming soon!