This book describes 116 new species and subspecies of marine, freshwater, and land snails from more than ten countries (Cambodia, China, East Timor, Indonesia, Laos, Myanmar, Philippines, Taiwan, Tanzania, Thailand, and Vietnam). These new species are completely different from those in previous books and illustrated on 83 colour plates and described in 119 pages. They include four bivalved shells, 12 marine shells, 10 freshwater shells and 94 land snails. Each new genus and taxon is presented with its scientific name, locality, size, habitat, diagnosis, description, comparison, colour photos and museum registration number. Thirty-three typical and attractive Amphidromus spp. of South Asian countries with nice patterns and assorted colours are illustrated on the back cover.