Treatises are books (often multi-volume sets) that cover specific areas of law in depth, such as copyright law. Treatises are good starting points when conducting research on a legal issue because they explain and analyze primary sources.
Bound volume treatises are typically updated with pocket parts, while looseleaf sets are updated with replacement pages. Treatises vary in how frequently they are updated.
Many of these copyright law treatises are available both in print and online. If available in both formats, the description for the print item contains the link to the electronic version.