I couldn't resist putting this up here. It's "An episode of US Government film series on careers. [I] assume it was shown to high school students. This one was filmed at the Iowa State College (now Iowa State University) library in 1946." (Posted by travelinlibrarian on Youtube on Nov. 22, 2006) Much of this still rings true - however it's not still mandatory that you be a humble woman with glasses to be able to work in a library.