This general user guide to the Educational Information System for Ontario (EISO) deals with the simple logistics of acquiring material from the system. Since EISO was developed as a way for Ontario citizens to use the Educational Resources Information Center (ERIC) data base in the United States, a preliminary description of ERIC is provided. Questions answered by the guide include who uses EISO, how to ask a computer question, who/what is a search analyst, how to make a search request, what kind of answer will be given, how long it takes, and how much it costs. A brief explanation of the way the computer links information using Boolean operators (AND, OR, NOT) is also provided, as well as a sample request form and computer printout, information for ordering microfiche, and a glossary of terms. (JD)