Dr. Lluís Puig is the Director of the Department of Dermatology, Hospital de la Santa Creu i Sant Pau (HSCSP) and Professor of Dermatology at the Universitat Autònoma de Barcelona (UAB) Medical School, Barcelona, Spain. In the last 20 years, Dr. Puig has focused on clinical research in the treatment of psoriasis with biological agents, an area in which he is a key opinion leader both nationally and internationally, having taught at numerous national and international conferences, workshops, and seminars. The results of his research have been published in numerous articles and book chapters. He has participated in numerous clinical trials on psoriasis, in most cases acting as principal investigator. Dr. Puig is a member of the Spanish Academy of Dermatology and Venereology, a founding member of several of its working groups, and a past coordinator of the Spanish Psoriasis Group. He is also an aggregate member of the Spanish Society of Rheumatology and its GEAPSO Group for Research in Psoriatic Arthritis, and of several international societies, including the EADV, AAD, CILAD, ESDR, ASDP, ISDP, and GRAPPA. He is or has been a Board member of the EADV (2013-2019), Co-chair of the Psoriasis Task Force of the EADV (2018-), scientific advisor to the Psoriasis International Network, President of the Psoriasis International Network and the Foundation René Touraine Scientific Board Executive Committee (2016-2020), Vice President of the Administration Council of the Foundation René Touraine (2018-2020), member of the European Dermatology Forum (2017-), Councilor of the International Psoriasis Council (2012-), Board member of the International Psoriasis Council (2018-), and member of the GRAPPA Education Committee and Steering Committee (2020-2023).