This document provides guidance on creating effective multimodal materials such as advocacy posters and short videos. It discusses choosing an appropriate combination of modes based on the purpose, subject matter, audience, and presentation mode. Tips are provided for creating eye-catching posters, including using headlines, concise details, calls to action, typography hierarchy, and engaging photographs. Guidelines are also given for simple video production, such as solidifying objectives, researching the audience, deciding on a core message, writing a script and storyboard, scheduling a shoot, editing, adding graphics and sound, and recording a voiceover. The document concludes by recommending several free apps that can be used to create multimodal materials on smartphones.