Title
The general assembly of galaxy halos : structure, origin and evolution : proceedings of the 317th Symposium of the International Astronomical Union held in Honolulu, USA, August 3-7, 2015 / edited by Angela Bragaglia, INAF Osservatorio Astronomico di Bologna, Italy, Magda Arnaboldi, European Southern Observatory, Germany and INAF Osservatorio Astronomico di Torino, Italy, Marina Rejkuba, European Southern Observatory, Germany, and Donatella Romano, INAF Osservatorio Astronomico di Bologna, Italy.