Yiannis Issaris is a marine ecologist, an acclaimed underwater photographer and an active conservationist. He studied Marine Sciences at the University of the Aegean and is a PhD candidate of Marine Ecology at the University of Athens (Greece) with a research scholarship from the Hellenic Centre for Marine Research (HCMR). He specializes in benthic ecology, in underwater biological mapping and in visual survey methods for the assessment of range and abundance of marine organisms. He is an expert technical and scientific diver with mixed gas qualifications for deep water diving.