Encyclopedia - An encyclopedia contains information about a broad range of topics or one special topic. Entries are generally longer than in an almanac, directory, or dictionary. Entries are in alphabetic order. Gazetteer - A list of geographical places and locations. Geographical resources - Information about the geography of the world, countries, regions, states, or cities.
Atlases contain maps and other geographical information.
A list just of geographical places and locations is called a Gazetteer. Guides - A reference guide is a book that lists, categorizes, explains, and recommends other reference sources. Handbook - A handbook generally pertains to a specific subject and contains quick facts, tables, statistical information, and perhaps lists organizations connected to the subject. Access is usually provided by subject, title, and author. Online indexes may provide keyword access and may contain full-text of the listed articles.