This document discusses common mistakes made in research papers and how to address them. It identifies several types of mistakes including vague or infeasible research topics, lack of preliminary readings, undefined terms, outdated literature, leading questions, inappropriate tones, incorrect verb tenses, and informal language. For each mistake, an example is provided as well as an explanation of how to properly address the issue. The overall message is to carefully consider research design, conduct thorough background research, and use formal academic language.