When to read business books


I’m doing the Entrepreneurial Management course.

Part 1 talks about constraint and working only 40 hours a week. I’m wondering, when Brooke talks about how personally she constrains and works 3 days, does she include reading business books in those 3 days? Or does she count reading as non-working time? I’m wondering if she and Kris would consider business reading to be part of the 40 hours.