The Pulmonary Drug Delivery Workshop (PDD) series was established by Prof. Carsten Ehrhardt in 2013 with an aim to provide a space for meeting colleagues, discussing research and engaging in new collaborative efforts in a casual setting. We welcome graduate students, postdocs and colleagues from academia and industry as well as government agencies (in other words, everyone is welcome!). The PDD workshop currently alternates annually between Dublin and Istanbul to accommodate participants from Western, Central and Eastern Europe as well as from the Middle East and Africa. We consider ourselves as a forum to learn about inhalation drug delivery from leaders in the field and discuss aerosol-related topics in a relaxed atmosphere. The Istanbul meetings are organised by Assoc. Professor Ayca Yıldız Peköz of Istanbul University.