That concludes the getting started guide for Terraform using Azure. Hopefully you're now able to not only see what Terraform is useful for, but you're also able to put this knowledge to use to improve building your own infrastructure.
We've covered the basics for all of these features in this guide.
As a next step, the following resources are available:
Documentation - The documentation is an in-depth reference guide to all the features of Terraform, including technical details about the internals of how Terraform operates.
Examples - The examples have more full featured configuration files, showing some of the possibilities with Terraform.
Import - The import section of the documentation covers importing existing infrastructure into Terraform.