This page from the Green Wood Trust contains some illustrations of hurdles and hurdle construction. This page, from the Wessex Coppice Group, contains a nice illustration of a hurdle garden fence.
This page contains some information about how to lay a hedge. Here's another page about hedgelaying.
And while you're at it, you might as well learn something about drystone walling.
It appears these traditional skills have disappeared from the United States, if they ever existed here at all.