The term 'SOME CHARTS' can refer to two different types of charts: pies and piegraphs. Pies are a type of chart that uses a circular shape to represent data, with each segment of the circle representing a different category. Piegraphs are similar to pies, but they use a graph-like structure to represent the data, with each bar or line representing a different category. Both types of charts are used to visually represent data in an easy-to-understand way.