The book "Geospatial Technology: An Overview Concept of RS, GIS, and GPS" offers a comprehensive and easily understandable introduction to geospatial technology. It covers fundamental concepts as well as deeper aspects of remote sensing, geographic information systems, and the global positioning system. The various terminologies of geospatial technology are also explained to promote a better understanding of the subject. The author, Kousik Das Malakar, aims to contribute to the dissemination and deepening of knowledge about geospatial technologies with this study. This textbook is aimed at students and professionals who wish to engage with the mathematical and scientific foundations of these technologies.