Treatises are the most useful type of secondary sources and are book-length expositions on the law as it pertains to a particular subject. Treatises may be scholarly in nature, or geared toward a legal practitioner, such as a manual or handbook. A legal treatise may be a short, single volume or a large multi-volume set. Many are available electronically as well as print. Different kinds of treatises have different purposes. Some are designed to serve as practitioners' tools. These works tend to address realistic legal problems and often provide useful features such as forms and tables. Check the Mendik Library Catalog and "Treatises by Topic" for additional titles.