To locate books on specific topics, search the Library Catalog. Begin with a keyword search which allows the use of everyday terminology and the combination of two or more concepts (e.g., "food allergens and labeling"; "food imports and regulation"). Use the truncation symbol to retrieve alternate forms of a word (e.g., regulat* will find regulation, regulations, regulatory, etc.; label* will find label, labels, labeling, labelling). Click on a title of interest and follow the subject links in the cataloging record to locate other books on the same topic. Alternatively, you can do a subject search, using one of the official Library of Congress subject headings in this area: