How to knit thrums

This video is a supplement to The Knitted Slipper Book. The book features 30 patterns for slippers and house shoes for the entire family, and one of the designs, Thrummed Booties, uses thrumming for an extra-cozy slipper. This video shows you how I like to work thrums.
The Knitted Slipper Book is an everything-you-need-to-know guide to making slippers. In addition to the knitting instructions, techniques covered include felting; shaping; sizing; attaching soles, linings, and insoles; and finishing with tassels, pom-poms, and other trims. Step-by-step photos assure beautiful, hard-wearing, and well-fitting results.