I am looking for suggestions of a good "What To" book for an ASA 5510 box, i.e. something that goes into the features of the ASA and what it can do for me, rather than something that just talks about how to do certain stuff with it. The problem I have run into time and time again is that most of the documentation I have found assumes that you already know what it is you want to do with the ASA, and therefore just tells you how to do task "A" without explaining what task "A" is or why you would want to do it. At my workplace, I was given the responsibility of "figuring out" our ASA box, and making it work, and while I have the basics running (firewall, VPN) I have this nagging suspicion that there is still a lot of untaped potential there that I don't know about. Any suggestions? Thanks.