This reference letter certifies that Alain Mechoulam taught various courses in sales and marketing for the hospitality sector as a guest lecturer at the Swiss College of Hospitality Management Lenk from April 7th to 17th, 2015. The letter states that Mechoulam fulfilled his teaching requirements on time and was highly appreciated by his students and colleagues. In addition to his classes, he was available to assist students and prepared exams at the end of each week to recap the topics, which were positively received. The dean recommends Mechoulam for any position as a lecturer based on his fields of expertise.