One of the key skills for any academic researcher is reading other peoples' papers. The trouble is that our peers write papers faster than we can read them, and to fully understand a paper takes a long time, because each paper summarizes months to years of effort. So you cannot fully read all the relevant literature, even if you did nothing but reading. This means you need to have a way to prioritize papers based on their relevance to your interests. Here's how I do it.