Instruct: Classify the given review as either positive or negative.
Query: Outstanding in every way

I preordered and my copied arrived end of last week... the first two chapters alone are worth the price of the book. They should be required reading for anyone involved with computer security in any way. This is a clear, enjoyable, practical book that should serve as the foundation for understanding how to design and implement security systems.This is not an overview of what's out there in the world of cryptography in general, this is a focused and clear description of how to really create security systems in the real world, and a concise explanation of what the dangers are.If you buy one book on cryptography, buy this one.