I think tptacek's point is that the answer to your question is spelled out very clearly on the page. ;-)
From the page:
> You should own Ferguson and Schneier’s follow-up, Cryptography Engineering (C.E.). Written partly in penance, the new book deftly handles material the older book stumbles over. C.E. wants to teach you the right way to work with cryptography without wasting time on GOST and El Gamal.
Plus a whole section at the end which starts with "If this stuff is interesting to you, here’s some additional reading:"
From the page:
> You should own Ferguson and Schneier’s follow-up, Cryptography Engineering (C.E.). Written partly in penance, the new book deftly handles material the older book stumbles over. C.E. wants to teach you the right way to work with cryptography without wasting time on GOST and El Gamal.
Plus a whole section at the end which starts with "If this stuff is interesting to you, here’s some additional reading:"