Marcello Colli attended the University of the Reggio Emilia Project in 1991. He took care of his training on design and communication with the teachers Gianfranco Gasparini, Paolo Bettini, and Giulio Bizzarri. In recent years he has come into contact through the school with numerous Italian design and industry companies such as Alessi, Bialetti, Barilla and with design and communication personalities such as Alessandro Mendini, Stefano Giovannoni, Luigi Ghirri, Ruggero Pierantoni, Antonio Caronia. After graduating he works as a freelancer in the design sector collaborating with the Tegoni studio and in the Fashion sector with the Maska company. In 2005 he opened commercial and product collaborations for the Italian market with some foreign design companies: Marset, DD Resol group, Viccarbe, Fambuena, Dab, Blux, and Bright. In 2009 Marcello Colli began collaborating with Maurizio Di Mauro Architetto, where together they created a new internal division dedicated to industrial design and related consultancy for companies. The studio collaborated and collaborated directly with the Italian companies in the furniture and lighting sector, both as art direction and as industrial design. Last in chronological order: Antidiva, Prima light, Meroni Mobili, MISS Divani, MC Milano and Contardi. Marcello Colli works as an interior designer and light designer by developing interior projects from lighting design to the creation of customized and production products and lamps. In 2018 the collaboration with Xform industrial design studio based in Reggio Emilia and Shanghai began, creating a new branch of the studio dedicated entirely to light. In 2019 he started consulting for some Chinese companies together with Xform.