People use them for different reasons. My son’s books are filled with words, numbers and letters. My books are filled with pictures. My drawings are neater than my handwriting so I prefer not to put both on the same page. Looking through my pile of moleskine notebooks I came across one page where I do have my handwriting and drawing on the same page. I was in the Pope’s hospital in Rome with a broken femur and a broken wrist. It just goes to show I can integrate the two.