This document outlines different types of academic papers and provides a three-pass approach for effectively reading and evaluating papers. It begins by listing various paper types, including original research, literature reviews, and meta-analyses. It then describes the typical structure of a research paper and highlights elements like the introduction, methods, results, and conclusions. The document recommends a three-pass reading approach: the first pass involves quickly reading metadata, abstracts, and conclusions to understand the paper's general topic and contributions; the second pass involves closely reading the introduction and identifying key concepts; and the third pass involves thoroughly evaluating the methodology, results, and conclusions. It concludes by listing questions one should consider when evaluating whether a paper was well-written and its