Evaluation findings need to be recorded so that they can be shared. This is usually achieved through a written report describing the project, the evaluation and highlighting what has been learned. A report is useful however brief, and sometimes brief is best. It should present a balanced account of the project, commenting on its impact, the strengths and weaknesses of its delivery and the learning that has been captured that might inform future projects.
Reporting does not have to be confined to a written document. You could explore using film, animation or infographics to bring your findings to life. The important thing to consider is who you are addressing with the report and how this audience will want to access the findings.