Charter is a really powerful stack that lets you add 8 different chart types using data from various sources. There are also countless settings within the stack that allow you to style and control the charts that you add. Due to all of this (and the added complexity of working with data) using Charter stack does involve a bit of a learning curve.
When you download Charter stack it comes with an example project that demonstrates all of the chart types and much of the functionality. It is the best resource for learning how to use the stack. If you don't have that project then you can download it below.
In addition to the project file this page also contains some tutorial videos. These cover the following areas: