Advances in Geoinformatics is a basic text book on remote sensing GIS, Digital Image processing for all the students enrolled in the subject of Geography and Geoinformatics. Compared to other introductory text books, this book focuses on the up-to-date techniques of Geoinformatics. This book also provides an exhaustive coverage of optical, thermal and microwave remote sensing, global navigation satellite systems (such as GPS), digital photogrammetry, visual image analysis, digital image processing, spatial and attribute data model, geospatial analysis, and planning, implementation, and management of GIS. Earth observation (EO) satellites have already revealed their suppleness in providing data to a comprehensive series of solicitation in natural resource management. The 1st chapter of the book provides a comprehensive and basic concepts of Remote Sensing technology. Chapter II explore the basics of satellite imagery, its types and characteristics. Chapter III, presents the digital image processing techniques with advance image processing algorithm. Chapter IV covers the aerial photography and photogrammetric techniques. In chapter V, elucidate the basics of GIS and illuminates the fundamental basis of GIS technology, spatial data modeling, attributes data management, GIS data analysis, and modeling. Chapter VI highlighted the basics of geodesy and discussed the associated features used in Geoinformatics. In chapter VII, focuses on global positioning system and GNSS in details. In chapter VIII, emphasis and analyzed on the practical examples of Remote Sensing and GIS software. In chapter IX, encompasses various types of application of Geoinformatics with proper illustration and examples. Topics are covered with adequate tables and illustrations with an essential introductory part. Additional learning tools like maps, charts, figures and tables have been provided throughout the text. This book is very much useful as a basic textbook on Remote sensing and GIS for the professor, research scholar, and environmental science teachers, professionals, and for all the students enrolled in the subject of Geography and Geoinformatics, and for all entry level students enrolled in the educational programmes at the graduate and post-graduate level and for several skill building short diploma and certificate courses.