This is the Media Bias Chart, in its latest iteration. It’s a unique way of laying out the complex media landscape in two dimensions: news value and reliability, on the vertical axis, and bias, on the horizontal axis.
People find it helpful because it’s a useful taxonomy (i.e., system of classification) for discussing a complex subject. We also have a detailed methodology for how we place sources on the chart. Further explanations about the Media Bias Chart below: