If you need to memorize a complex concept, try creating a memory collage. Here’s how it works. Pick the key elements and relationships that describe the concept. Then, find images that you associate with those elements. You can browse magazines if you want to make it low tech or find images on the web if you want to create your collage in a digital format, or maybe, you can sketch them yourself. After you are done collecting your visuals, arrange them in a collage trying to reflect the relationships among the underlying elements. The benefit of a memory collage is that it allows you to see the concept as a whole whereas the verbal description can only be sequential.