It is hard to overstate how much we rely on others in acquiring knowledge (for better or worse). In this course, we elucidate the many forms this reliance takes. We investigate how knowledge is distributed in the scientific community and elsewhere, including in society as a whole, and how information and misinformation spread in these communities. We also identify potential flaws in the existing structures in which knowledge is distributed and disseminated, and try to find ways in which these structures could be improved.