Excel2010:Charting: Sparklines

Overview
New in Microsoft Excel 2010, a sparkline is a tiny chart in a worksheet cell that provides a visual representation of data. Use sparklines to show trends in a series of values, such as seasonal increases or decreases, economic cycles, or to highlight maximum and minimum values. Position a sparkline near its data for greatest impact.

Use sparklines to show data trends - Excel Microsoft Office (2010)