Just found a nice PDF (Kudo @jens-erat /via) about XPath worth to share the link along:
Xpath PDF – Lecture: XML Technologies Winter 2012/13 – Dr. Christian Grün
Google PDF Preview shorturl in case your browser does not like to open it (my Google Chrome had a hickup with it, Curl/Opera is fine): http://goo.gl/nqYTZ
Tagged: Dr. Christian Grün, PDF, XPath
