Part I Introduction,- Purpose,- The data,- Advantages and limitations of airphotos for photogeological analysis, interpretation, and terrain mapping. Airphotos used in the book. Advantages and limitations of satellite imagery for photogeological analysis, interpretation, and terrain mapping. Acquisition of satellite images used in the book. Resolution of Geounits in downloaded images. Classification of Photogeological Geounits,- Definition of photogeological Geounits and Variants as delineation Units for terrain mapping. Classification of Geounits and Variants. Examples of Data Integration,- Principles of analysis and interpretation of Geounits and Variants in airphoto and satellite imagery. Examples of integration of imageries and airphotos for analysis and interpretation of Geounits and Variants. Interpretive texts. Examples with geohazard relations. Geological time scale. Acknowledgments. Bibliography Part 2 The Examples,- Magmatic Rocks and Structures. Sedimentary Rocks. Metamorphic Rocks. Geostructures. Aeolian Deposits and Erosion Forms. Basinal Sediments. Fluvial System Sediments. Marine Littoral Systems. Glacial and Paraglacial Geosytems. Periglacial Related Forms. Mass movement Materials