Dr Giovanni Morelli, agronomist and arborist, owner of Progetto Verde since 1994, is a consultant in urban arboriculture, specialized in tree risk and tree stability assessment. He has written numerous articles and he is a lecturer in university courses. He has been speaker at more than 60 national and international conferences or seminars. He is a member of the ISA International Society of Arboriculture (ISA), of the SIA (Società Italiana di Arboricoltura), and of SAG Baumstatik e.V.. He is ISA Certified Arborist, ETT – European Tree Technician, Board Certified Master Arborist (ISA) and TRAQ Qualified (Tree Risk Assessment Qualification).