Typical Salesforce DX Development workflow

Here is a blog post by David Ryan that provides the high level steps of development using Salesforce DX by pulling metadata from your existing developer or sandbox org, converting it to SFDX format, integrating with source control, and then deploying the changes back to your org.

https://medium.com/@djrzo4/salesforcedx-123cc383a27e


Getting Started with Salesforce DX:

Here is a five-part blog series on Getting Started with Salesforce DX written by Zayne Turner.

https://developer.salesforce.com/blogs/2018/02/getting-started-salesforce-dx-part-1-5.html


Working with Modular Development and Unlocked Packages

Here is a four-part blog series on working with Modular Development and Unlocked Packages written by Zayne Turner.

https://developer.salesforce.com/blogs/2018/06/working-with-modular-development-and-unlocked-packages-part-1.html