The second edition of this introductory GIS textbook is thoroughly rewritten and updated to respond to the demand for critical engagement with technologies that address relevant issues across several disciplines preparing students for higher-level work in geotechnologies. Chapters are arranged to (1) build competence in fundamental skills, (2) explore applications of higher-level managerial and analytical functions that are typically called upon in public, nonprofit, and private sector milieu, and (3) propose and detail a template for organizing, executing, and completing a GIS project successfully. This interests all users from beginners to experienced professionals. Features: Uses the latest version of ArcGIS Pro (3.0) to present a fully rewritten and updated text with diverse perspectives. Includes many real-world examples with urban planning, environmental, and social justice foci. Presents new discussions, examples, and lab materials on open-source GIS projects. Junior and senior level undergraduate students taking courses in remote sensing and GIS applications, studying in the fields of Geography, Environmental Sciences, Computer Science, Urban Studies, Public Health, and Social Disciplines, as well as researchers and academics in the same fields, will all benefit from the information provided in the updated version of this book.