Via approximately 80 entries, the SAGE 21st Century Reference Series volumes on geography highlights the most important topics, issues, questions and debates any student obtaining a degree in this field need to have mastered for effectiveness in the 21st century. The purpose is to provide undergraduate majors with an authoritative reference source that will serve their research needs with more detailed information than encyclopedia entries but not so much jargon, detail, or density as a journal article or a research handbook chapter. Key features: - Curricular-driven to provide students with initial footholds on topics of interest in writing essays and dissertations, in consulting to determine directions to take in pursuing a senior thesis, graduate degree and so on - Comprehensive to offer full coverage of major subthemes and subfields within the discipline of geography, including regional geography, physical geography, global change, human and cultural geography, economic geography and locational analysis, political geography, geospatial technology, cartography, spatial thinking, research methodology, geographical education and more. - Uniform in chapter structure to make it easy for students to locate key information, with a more-or-less common chapter format of Introduction, Theory, Methods, Applications, Comparison, Future Directions, Summary, Bibliography and Suggestions for Further Reading, and Cross References. - Available in print and electronic formats to provide students with convenient, easy access.