Biologically active natural products are of great importance both for basic research and for research and development in the pharmaceutical and agrochemical industries. As a good insight into current developments and as a forum for the interdisciplinary exchange of experience, the annual Irseer Naturstofftage of DECHEMA e.V. have been an established event for more than three decades. They are organized by the DECHEMA e.V. working group on “Small Molecule Natural Products with Biological Activity”. Special emphasis is on the promotion of young scientists: lecture sessions by young scientists and young award winners are the core of the programme as well as the extenisve poster lectures’ session covering all areas of natural products research. Meet Lutz Müller-Kuhrt and Lars Ole Haustedt in Irsee!