The 13th IACM Conference is dedicated to Professor Roger Pertwee, who turned 80 last year and worked at the University of Aberdeen for many decades. We also want to celebrate the life's work of Professor Raphael Mechoulam, who passed away this spring. The two worked closely together, including on the discovery of the first endocannabinoid that they named anandamide in 1992. Both are outstanding pioneers in cannabis research and both have served as past chairs of the IACM Board of Directors.