- Pie charts are often criticised. Comparing the size of pie segments can be difficult, and many visualisation experts suggest that bar-charts should be used instead.
- When using colours to portray data values or types, ensure that the colors used are accessible to all users. Online tools such as ColorBrewer (www.colorbrewer.org) can help identify issues with colours used.
- Doughnuts can be created in a range of standard data applications such as Excel.
- Pie charts can be created in a range of standard data applications such as Excel.