That depends on how easy it's for you to learn and internalise a new idea.
You can understand the basic premise of these books by just reading the summary, but you need a lot of reinforcement to internalise the idea and want to execute on it.
That's just how learning works.
You can understand the basic premise of these books by just reading the summary, but you need a lot of reinforcement to internalise the idea and want to execute on it. That's just how learning works.