This series will help you understand the Lightning Process Builder in-depth. The Lightning Process Builder is a new workflow tool that helps you easily automate your business processes by providing a powerful and user-friendly visual representation of your process as you build it. One can use the Process Builder to set up complex Workflow (Using click, not code) in Salesforce which otherwise required Apex. I have categorized the articles based on Process Builder actions.
Converted in Flow
1) Getting Started with Process Builder – Part 16 (Creating Custom Record Sharing Logic) Converted into Flow
Launch a Flow
Custom Labels and Process Builder
Creating Reusable Processes