Notes
- Use a bar chart with two or more series, multiple bars ==distinguishable by Colour==
- A big drawback of paired bar chats
- However, we should be mindful of falling into the trap of thinking this is the only way of presenting changing ranks.
Smith, Alan. How Charts Work (p. 149). Pearson Education. Kindle Edition.
problems
- Visual focus keep being interrupted
- Hard to confirm (densely packed forest of bars)