This two-part book has been prepared to assist the students of Rochelle Township High School in their search for information in the library. Part I introduces library classification, the card catalog, and basic reference sources freshman students will learn how to use in the library research skills unit of their first semester English course. Reference sources covered include encyclopedias, dictionaries, almanacs, yearbooks, atlases and gazetteers, biographical sources, general literary sources, periodical indexes, and nonbook materials including vertical files, microforms, and audiovisual materials. Part II introduces advanced reference sources in various subject areas that will be useful to older students in researching information. Subject areas covered include art; U.S. and world history; geography; language; literature, drama, and Shakespeare; mass media; philosophy and psychology; religion, mythology, and folklore; science and technology; social sciences; and sports and recreation. Appended are explanations of the following: (1) the ten major classes of the Dewey Decimal Classification with each of their ten divisions, (2) Library of Congress Classification, (3) information found on a card catalog, (4) magazines available in the high school library, and (5) an annotated bibliography of reference sources. A student activity workbook, related to this document is also available. (Author/JPF)