While there are definitely some similarities, editing video takes some special considerations and adjustments to your workflow that are not necessary when working with photos. A lot of the focus is on efficiency and managing resources effectively, and one of the most powerful tools for achieving that is proxy files. This excellent video tutorial will introduce you to proxy files and show you how to use them when editing your videos in Premiere Pro.
Coming to you from Matt WhoisMatt Johnson, this great video tutorial will show you the ins and outs of working with proxy files in Premiere Pro. Simply put, a proxy file is nothing more than a lower-quality (and thus, smaller) version of a video file. In turn, these will be less taxing on your computer, making it easier to scrub through the file, add effects, make adjustments, and more. When you are done with your edit, Premiere will use the original high-quality file to render the final video to ensure the best output. Check out the video above for the full rundown from Johnson.
If you are new to video work and would like to continue your education, be sure to check out "Introduction to Video: A Photographer's Guide to Filmmaking With Lee Morris and Patrick Hall!"