The chart spec Emolysis uses defines seven types: bar, line, area, scatter, pie, KPI and table. Bars can be stacked or horizontal, lines and areas can be stacked, and a KPI shows one figure with an optional trend line. Numbers can be formatted as compact figures, fixed decimals, percentages or currencies.
The same spec is drawn in the desktop app and in the browser, so a chart looks the same in both. Every chart also lists its data in a table, for screen readers and exact values.
The sample dashboard on this site uses every chart type with synthetic data. Read more on the BI page and in the docs on dashboards from a question.