As I noted elsewhere, I'm looking at using Goodreads as a catalog system for my fairly extensive library.... here's a widget courtesy of the Goodreads people that gives a taste of some (I've only entered about 800 so far) of the books in my collection, in this case those I've tagged with the term 'cybernetics'

or, to see my complete 'cybernetics' shelf, click (and scroll down past tags see books) :