Legal issues arise in libraries. Which is why, over the past year and a half, our Letters of the Law column at americanlibraries.org has explored a wide range of legal topics, led by two authorities: Mary Minow, a librarian who became a lawyer, and Tomas A. Lipinski, a lawyer who became a librarian. We’ve assembled some of their most topical entries, touching on copyright issues for remote learning, face-mask exceptions, and liability waivers, among other things.