This 2-page handout adapts Richard Mayer’s 15 multimedia learning principles into a concise and easy-to-apply guide. Each principle includes a brief definition, practical examples, and tips to help you create impactful multimedia learning materials. Organised into Mayer’s four categories—multimedia, reducing extraneous processing, managing essential processing, and fostering generative processing—the handout is a valuable resource for educators and instructional designers seeking to improve learner engagement. Links to detailed research and examples are included for further exploration.