There are many situations, particularly in a classroom environment, where you might want to use copyright-protected material but you can’t obtain permission from the copyright holder. A common example would be a teacher who wants to read a poem from a book or show an educational cartoon to her class. Thankfully, copyright law addresses these particular types of uses directly, in 17 U.S.C. § 110. Section 110 provides important exemptions for certain performances and displays of copyrighted works in the classroom (and certain limited online learning situations) that would otherwise be considered infringement.