This book discusses the entire lithostratigraphy of Iran from the Proterozoic to recent. This unique book manages to elucidate the stratigraphy of Iran, after an exhausting and long-term process; the creation of a comprehensive stratigraphic framework required input from many Iranian specialist stratigraphers - a process which will be ongoing in the future. However, the main purpose of this work is to provide a concise summary of the state of the art of the lithostratigraphy for Iranian formations. The geology of the various sedimentary basins is described for each geological time period, together with the constituent lithostratigraphic units. The available stratigraphic data are summarized in tables, providing all relevant references. Finally, the book presents the spatial and temporal distribution of the various formations, together with their geographic locations, type sections and lithological composition.