There are several ways to hold your needles and yarn, and in this class, Debbie Stoller teaches the English style of purling, which is one of the most common methods (hint: this is the one where the working yarn is held in your right hand).
Purl Stitch English Style
Debbie Stoller is the New York Times best-selling author of the Stitch ‘n Bitch series of knitting and crocheting books, and has helped to popularize knitting among a new generation since 1999. She is also the co-founder and editor-in-chief of BUST magazine, and is the co-author of The BUST DIY Guide to Life.