The book is dedicated to the Ionian Sea, which is part of the Mediterranean. The encyclopedia contains about 600 articles on the hydrographic and geographic objects, hydrological features of the sea, biological resources, as well as administrative-territorial units of the Ionian countries. The most significant natural objects like islands, peninsulas, bays, rivers, mountains, their geographical peculiarities are briefly described as well as economy, culture and history, cities, ports, international agreements, research institutions, activities of outstanding scientists, researchers, travelers are presented in the publication. The chronology of the main historical events that have become significant landmarks in the history of discovery and exploration of the Ionian Sea from the 31 B.C. to the present day is given.

This book focuses on the Adriatic Sea and includes articles on the hydrographic and geographic objects, hydrological features and biological resources, the administrative-territorial units of the Adriatic countries, economy, culture and history, cities, ports, international agreements, research institutions and the activities of outstanding scientists, researchers, and travelers.

This publication is devoted to the natural feature – the Black Sea and its littoral states. At the same time the Azov Sea is also considered here. This region is the focus of many geopolitical, economic, social and environmental issues that involve not only the countries coming out to the Black and Azov Seas, but other world countries, too. This publication contains over 1500 articles and terms providing descriptions of geographical and oceanographic features, cities, ports, transport routes, marine biological resources, international treaties, national and international programs, research institutions, historical and archaeological monuments, activities of prominent scientists, researchers, travelers, military commanders, etc. who had relation to the Black Sea. It includes a multi-century chronology of the events that became the outstanding milestones in the history of development of the Black Sea – Azov Sea region.