BTC University has partnered with Sassoon Academy to bring the best in fundamental hairdressing education to stylists around the globe. This exclusive class is just a preview of what you can learn with the Sassoon ABC Fundamentals Collection. In this class, Sassoon Senior Master Colorist, Dianne Degnan (@diannedegnan) is breaking down the different styles of foiling you need to know to create a strategic, customized look for every client in your chair.