The book was written by a team of authors, including well-known specialists from the USA, Great Britain, Canada, Australia, France and other countries. This is the most complete summary of sedimentary carbonate rocks in the world literature. Volume I is devoted to petrology and petrography of carbonate rocks, classification of sedimentary carbonate rocks, origin and distribution of limestones and dolomites. Carbonate rocks are characterized as oil and gas reservoirs, the importance of carbonate rocks as indicators of paleoclimatic conditions is highlighted.