To learn how to use it at its best, have a look at this video:
Or at the presentation below:
If you'd rather read all of this information on paper, here is a printable PDF on the topic.
eBooks on Discovery
When searching through Discovery, you might find some eBooks. Here are some detailed instructions explaining how to access them:
And again, if you'd rather read all of this on paper, here is a printable PDF to download.