The Earth's Dynamic Surface is a book on Geomorphology written by K. Siddhartha. It is available in English and is a paperback edition. The book aims to answer fundamental questions of Geomorphology in a simple and accessible manner, presenting the latest facts and eliminating obsolete concepts. It is designed to be a comprehensive textbook for graduation and post-graduation levels for all Indian Universities. The book is also popular for the Geomorphology section of Geography, particularly for State PCS preparation.