The document describes 5 scenarios involving the use of copyrighted materials: 1) An instructor wants to include a photo of a Frank Lloyd Wright building in an online educational resource, but the original source and photographer are unknown. 2) An instructor wants to include an extract from an unpublished 1950s letter in a course presentation and materials, without permission. 3) An instructor finds charts from the World Bank under a Creative Commons license and wants to include them in a lecture and make the materials available online. 4) A researcher wants to copy a 1911 newspaper photograph but the copyright holder is unknown. 5) A student writing a history paper wants to keep digital copies and include photographs of demolished buildings from