Applied Cryptography taught me several new modes of thinking about software design (which is not directly related to crypto at all) and provided a good overview

Applied Cryptography taught me several new modes of thinking about software design (which is not directly related to crypto at all) and provided a good overview of things that someone probably solved or failed to solve with cryptography. Plus, it has a decent historic overview of some algorithms failing. What else could you ask for? I mean, yeah, it's an optimistic book. It talks about possibilities. How can someone to treat is as a developer reference is beyond me.