How do you make money from a free product? This week on the CEO Series, Karl Moore of McGill University’s Desautels Faculty of Management speaks with Kat Tchernavskikh, co-founder and CTO, of Shoott a start-up that offers short photoshoots at no up-front cost to its customers. In December, Tchernavskikh was named to the Forbes 30 under 30 list for her dedication to building a successful start-up that now has a presence across the United States.