Great NSXMLParser Tutorial

Here is a very helpful tutorial on using NSXMLParser that was suggested by Ray Wenderlich on his forum. It walks you through using the 3 main parsing methods (didStartElement, foundCharacters, didEndElement) and includes an easy to follow example. I went from knowing nothing about using NSXMLParser to parsing XML from an API request in no time. 

Here are a few other resources that helped out once I had my feet under me: