The Junior Fellow internship program is itself an amazing program which introduces undergraduate as well as graduate students to a vast world of information.
...it also became clear to me that I was entering into a rare opportunity. During my ten weeks with the Library of Congress, I would have access to a collection of materials composed largely of textbooks, cypher books, or treatises in the history of math--a collection most of which had never been digitized and, as a result, was generally understudied.