**About the Editor**

**Lu´ıs Marcelo Tavares** is a Professor at Universidade Federal do Rio de Janeiro (UFRJ) in Brazil. He received his bachelor´s degree in Mining Engineering (honors) and his master´s degree from Universidade Federal do Rio Grande do Sul. He was awarded a Ph.D. degree in Extractive Metallurgy at the University of Utah. He has been a member of the faculty of UFRJ since 1998, where he founded and is head of the Laboratorio de Tecnologia Mineral and has also served as Department ´ Chairman. His research interests include particle breakage, advanced models of comminution and of degradation during handling, DEM, physical concentration, classification, pelletization, iron ore processing and development of pozzolanic materials. He is a founding member and currently president of the Global Comminution Collaborative (GCC) and has received numerous awards from the Brazilian Association of Metallurgy, Materials and Mining (ABM).
