The Directory of Geoscience Departments 51st Edition is the most comprehensive directory and source of information about geosciences departments and researchers available. It is an invaluable resource for individuals working in the geosciences or must identify or work with specialists on the issues of Earth, Environmental, and related sciences and engineering fields. The Directory of Geoscience Departments 51st Edition provides a state/country-sorted listing of nearly 2000 geoscience departments, research departments, institutes, and their faculty and staff. Contact information for departments and individuals is provided, as well as details on department enrollments, faculty specialties, and the date and source of faculty and staff’s highest degree. Continuing for the 51st edition: Listing of all US and Canadian geoscience theses and dissertations accepted in 2013 that have been reported to GeoRef Information Services, as well as a listing of faculty by their research specialty.