Lisa Charlotte Rost: One Chart, Nine Tools – Revisited. “2.5 years ago I wrote an article recreating the same bubble chart with 24 different charting tools: twelve charting apps and twelve libraries/frameworks. Afterward, I wrote an article for SOURCE explaining what I had learned during this experiment. During the last 2.5 years, the tool landscape changed. It’s time to look at it again!” Ms. Rost notes that she does work at one of the reviewed tools now, but has strived to be neutral in her judgement.