This is a class in Creativebug, accessible with a monthly subscription.

The description of the class from the website:

In this innovative class, knitting expert Lynne Barr shares the technique she invented for making a hat with a unique twisted top design. From brim to crown, the hat is worked in a 1x1 rib in the classic in-the-round fashion, but instead of decreasing as for a traditional hat, Lynne teaches how to finish it off with her signature traveling pleats technique. She walks you through the steps of transferring stitches to double-pointed needles to set up the pleats, and then finishing them off with a divided rib graft. While the names of the techniques might sound intimidating, they are easy to grasp with Lynne Barr walking you through the instructions one stitch at a time. The result is a graceful gathering, in addition to a new style of knitting.