Understanding Data - Data Points: Visualization That Means Something - page 36

FIGURE 1-25 View of the Sky by Santiago Ortiz, http://moebio.com/exomap/viewsofthesky/2/
Without context, data is useless, and any visualization you create with it will
also be useless. Using data without knowing anything about it, other than the
values themselves, is like hearing an abridged quote secondhand and then
citing it as a main discussion point in an essay. It might be okay, but you risk
finding out later that the speaker meant the opposite of what you thought.