This page shows you the list charts. By default, the movies are ordered by how many times they have been marked as a favorite. However, you can also sort by other information, such as the total number of times it has been marked as a dislike.
Patricia Aufderheide's list from 'Documentary Film: A Very Short Introduction' - part of the highly regarded series from Oxford University Press.
"These documentaries have been widely seen and discussed, and have been in many cases at the center of controversies; in other cases they have provided valuable teaching resources. They are all accessible for renting or buying for your private collection. You can use the index in this book and other books mentioned in the references, imdb.com, your local library, Netflix, Google, and the Library of Congress to find out more about why these films have attracted attention and esteem. Viewing this collection will set you up nicely with a context to watch your latest favorite, argue with the list, and build your own top one hundred."
Taking Pictures (1996) (http://aso.gov.au/titles/documentaries/taking-pictures/)