Hi,
advert break: The (leading) german computer magazine c't [1] has a 6-page Pd tutorial in its 17/07 issue (in stores Aug 6), written by yours truly.
It's a basic introduction geared towards absolute beginners. But I've managed to smuggle (at least) two small mistakes into the example patches[2] that advanced users can search for. ;)
[1] http://www.heise.de/ct/ [2] http://www.heise.de/ct/ftp/07/17/192/
Ciao