Synopsis The book is an output of Ph.D. dissertation at the University of St. Andrews, U.K., under the sponsorship of the Association of commonwealth Universities. Relative sea level movements, both in geological time scale, as well as the current trends, refer to very complicated processes, operating globally, regionally and locally. Dr. Islam has widely reviewed these issues from theoretical to applied context. Based on empirical evidences, the fluctuating history of relative sea level movements, during the last ten thousand years for Bangladesh, have been reconstructed. The implications of such reconstructed marine transgression-regression sequences, on coastal geometry, shoreline migration, coastal vegetation successions and coastal dynamics, have been synthesized quantitatively. This book offers a clear explanation to the science of sea level changes and can be used widely by academics, policy makers, coastal and environmental scientists, geographers, university students and above all general readers.