This document discusses Creative Commons licenses. It provides an overview of what Creative Commons is and describes the six main Creative Commons licenses - Attribution, Attribution-ShareAlike, Attribution-NoDerivatives, Attribution-NonCommercial, Attribution-NonCommercial-ShareAlike, and Attribution-NonCommercial-NoDerivatives. The document includes an activity where participants match license logos to their meanings. It also cautions that the "-nc" or non-commercial component of some licenses may be too restrictive and limit beneficial uses of content.