In my last post I criticized a figure showing Facebook valuations over time. Although I received a number of comments, they were by email and tweets rather than the comment section of this blog.

You can make a line graph in Excel in a matter of seconds using data already entered into the spreadsheet. Line graphs can help make data easier to understand by creating a visual representation of ...

Most graphs chart data that you currently have, but in the course of running a business, you may find you need to design graphs before their data is available. For example, you might use Microsoft ...