We are pleased to announce 12th Interregional Workshop on Advanced Nanomaterials, which will be held in Prague in November 15 - 16, 2016. This year the workshop is organized by the Charles University in Prague, Faculty of Science and Institute of Physics, The Czech Academy of Sciences. IWAN is an informal meeting of scientists mainly from institutions located in Poland, Germany and Czech Republic working in the field of advanced nanomaterials. For details on registration and abstract submission, please see the web pages of IWAN.