The document discusses different types of research and sources for conducting research. It outlines two main types: primary research, which generates original data through methods like experiments and surveys, and secondary research, which analyzes existing information from published sources. Some key advantages and disadvantages of each type are provided. The document also details many sources for secondary research that may be used, including books, magazines, newspapers, reference works, and internet resources. It stresses the importance of evaluating the quality and credibility of sources.