1. http://www.biostat.wisc.edu/~kbroman/presentations/IowaState2013/graphs_combined.pdf
2. http://www.biostat.wisc.edu/~kbroman/presentations/IowaState2013/index.html

Display data well

• accurate and clear
• show as much information as possible
• avoid unnecessary frills
• things to be compared should be adjacent
• add color for comparison
• value $\propto$ radius
• align things vertically
• use common axes
• use labels not legend
• don’t sort alphabetically (use meaningful variables)
• consider taking logs and/or differences