This was a quick read. It was more readable than the Guide to the PMBOK, but not as good a flow as the Agile Practice Guide. I was reading to help coach someone on decomposition, and it was helpful. I've been through a training program from the University of California Santa Cruz Extension, so the material wasn't new. There wasn't anything really surprising, I just wanted a refresher. I've applied to take the PMP exam, so thought this might help as well. We'll see. I would have gone through this faster, but it wasn't my top priority.