"Do the exercises" is only something you can do if you have the book. Learning from blog tutorials don't usually have that benefit. You could still use this p

"Do the exercises" is only something you can do if you have the book. Learning from blog tutorials don't usually have that benefit. You could still use this person's approach but you'd have to substitute in something for step 3. I'd say some kind of "mini-project" makes an acceptable substitute in most cases.