This document provides an overview and discussion of copyright law concepts for libraries. It summarizes Part 1 which covered copyrightable works, rights of creators, copyright duration and fair use. It then discusses applying the four fair use factors to examples and Section 109 on the first sale doctrine. For ebooks, it notes they are licensed not owned due to lack of digital first sale doctrine, and licenses can limit usage compared to copyright. The document aims to help libraries understand and defend their use of copyrighted works.