This one is for showing off a bit, or if you are just a huge fan of John Milton. The Areopagitica is his Seminal work on Free Expression and was intended as an appeal to British Government not to submit to publishing in Britain to several layers of censorship. There is much wisdom to be gleaned from this volume. Here is a great summary of the work.
P.S. If you get these and haven't read the whole thing, we won't tell anyone.