Legends and sources

- [Instructor] In this video I'm going to talk about…the necessity for clear legends, so that users…understand what they're looking at…in your visualizations.…And also the importance of including your sources.…These details can make or break an information design…or data visualization project.…Legends, sometimes called keys,…are those explanatory queues that are often found…in the bottom right-hand corner of a chart,…and so even when you create a chart in Excel…it sort of puts them over there…on the right-hand side, it helps the viewer…understand what they're looking at.…

In the most basic form of a chart,…like this one here, where everything is labeled,…there's really only one thing,…I know how many Snoods each one of my…Whatchamacallits has, and Whosawhatsits, et cetera,…I don't really actually need a legend…in this case, it's one of those rare times…when I don't, but for the most part,…you're going to need legends, especially…if you start adding weird shapes or colors,…or, more data, more layers of data,…in this case I need to know what the Tally Hos…