The document discusses how to resize Facebook photos using the website PicMonkey. It explains that Facebook has specific photo size specifications for profile and cover photos. It provides step-by-step instructions for uploading photos to PicMonkey, resizing them to meet Facebook's dimensions, and saving the optimized photos to one's computer. Specifically, it demonstrates resizing a cover photo from 921x640 pixels to 851x315 pixels and a profile photo from 266x320 pixels to 180x180 pixels.