This volume presents organically and as comprehensively as possible the techniques that, even if not properly designed for SAR, have been used in the sector with excellent results. The aim and common thread of the speech is their use to design entertainment; in fact, they allow to have a powerful communication tool that can be molded on any type of surface, but this implies a great responsibility in terms of message, quality and science, especially when to be involved and the cultural good.Video projection means communication but to do so correctly and need to know the tools we have available so as to have clear its limits and potential. In this regard, the book is intended to be a sort of laboratory from which the reader can make their own the experiences of the author, draw knowledge and deepen arguments, and then design their own intervention.Finally, since the success of a multimedia installation cannot be separated from the audio aspect, a specific chapter, by the sound designer Luca Canciello, introduces the player in the articulated world of sound and its design.