Lynda - Designing with Grids in InDesign https://www.lynda.com/InDesign-tutorials/Designing-Grids-InDesign-Revision/5038205-2.html Take the guesswork out of your InDesign...
Introduction 1. Grids: An Overview 2. Setting Up a Grid 3. Using a Baseline Grid in InDesign 4. Grid-Related InDesign Tools and Features 5. Breaking the Grid 6. Third-Party Grid Tools Conclusion