Excel Sparklines Tutorial
Related Tutorial: Excel 2010 Sparklines Overview.
An overview of sparklines is available that covers in greater detail the types of sparklines available and the uses for each type.
Sparklines Step by Step Tutorial
This tutorial specifically covers creating and formatting a line sparkline. Since the steps for creating all sparklines are the same, this tutorial can also be used to create a column or win/loss sparklines as well.
The steps in this tutorial are: