Dear Friends and Colleagues,We cordially invite you to attend the 2nd ICSU/IUPAC Workshop on Crystal Engineering, which will be held in Como, Italy on August 30-September 1, 2015.This international workshop will serve as a mid-term meeting of the ICSU project CONvINCE “CONcepts and termINology in Crystal Engineering” and of the IUPAC project no. 2012-044-1-100 “Basic Terminology of Crystal Engineering“ (IUPAC Project No. 2012-044-1-100).The objective of this workshop is to bring together a large number of scientists working in any areas related to crystal engineering.In particular, this workshop is directed to:• Specialists of international standing;• Scientists from developing countries who will describe the particular practices adopted in their countries;• Researchers and students concerned with crystal engineering research.The program will comprise invited lectures by internationally renowned leaders in the field. Posters presentations are also scheduled and opportunities are planned for young scientists’ networking with both peers and recognized leaders in the field.Welcome to the 2nd ICSU/IUPAC Workshop on Crystal Engineering!Pierangelo Metrangolo and Giuseppe Resnati