Petros G. Tsoungas was born in Thessaloniki, Greece. He earned his BSc (Hons) in chemistry at North London University in 1978. His MSc and PhD degrees in organic chemistry were earned from the University of East Anglia (UK) in 1981. He fulfilled his national military service in Greece from 1981 to 1984; concurrently, he worked as a research associate at the University of Thessaloniki from 1982 to 1984. He held an NIH postdoctoral fellowship at the University of Alberta (Canada) from 1984 to 1985. Later, he became head of hygiene and safety at the EKO National Refinery from 1989 to 1992. From there he worked in the Greek Government Science Policy Department from 1992 to 2008. Since then, he has been a senior researcher at the Hellenic Marine Research Centre, then at the Hellenic Pasteur Institute, where he currently works. His research interests include fused 5- and 6-membered N,O heterocycles and ab initio and DFT-addressed relevant issues.