Book excerpt: The book presents an account of mangrove forest ecosystem, its structure and function. Mangroves are littoral plant formation found in tropical and sub-tropical countries and occurs on the margins of oceans and estuaries. In this book all the aspects of mangrove forest have been discussed. The biodiversity, floristic composition and taxonomy have been enumerated very nicely. The loss of mangrove forest and its conservation and management aspects have been given in details. A case study of mangrove forests of Andaman islands and South Japan has been documented in details. This is very good book for those who are working on mangrove ecology, taxonomy, physiology and coastal ecology.