Handbooks, Guides, or Introductions are also great books to use for overviews of a subject. They are also very helpful when you begin your research. They are often organized by chapters and subheadings that you can use to find which aspect of the subject you want to focus on. Handbooks, guides, and introductions are good for answering quick questions you may have. They are organized alphabetically.
Atlases are books that have maps and geographic information.
You should use them to find places you are searching for or information about certain places . Atlases range from a general collection of maps of the world such as as of the World , to historical atlases such as A Historical Atlas of South Asia , to subject specific atlases such as the Atlas of the Environment . The easiest way to find information in them is to use the index. Statistics are often necessary in papers. They help you with numeric evidence that backs up your argument in a paper.