This document discusses Creative Commons licenses and provides 20 tips for making a good presentation. It describes the different Creative Commons licenses including Attribution (BY), ShareAlike (SA), NonCommercial (NC), and NonDerivatives (ND). The licenses determine whether others can share and adapt the work for commercial purposes or must release adaptations under the same license. The presentation tips cover preparing content with focus and stories, designing slides with clear visuals and effective use of colors/fonts, and delivering with passion, eye contact, and keeping it short. Overall messages are to keep things simple, consistent, and allow viewers to grasp information quickly.