Best approaches to reading this book
As I already said, if you’re a total beginner with Orchestrator, work through the vRealize Orchestrator Essentials book first, which is more like a classroom that starts and develops your starting skills. Also refer to the upgrade link of the vRealize Orchestrator Essentials book (http://langenhan.info/vRO-Essential_update.pdf) for vRO7.
If you plan to use vRealize Automation, it's is best to start with Chapter 13, Working with vRealize Automation , before diving deeper. vRealize Automation just leverages Orchestrator workflows and plugins. Check out Chapter 1, Installing and Configuring Orchestrator .
If you plan to automate your vSphere infrastructure, you can dive straight into Chapter 13, Installing and Configuring Orchestrator , and then check out Chapter 12, Working with vSphere . Then I would start looking at the different plugins.
If you would like to improve your existing skills, check out Chapter 4, Programming Skills , to Chapter 8, Better Workflows and optimized working .