Ronald Searle, the late, great British illustrator, was often referred to as the best draftsman of his generation. To what did he attribute his fluency of drawing? His sketchbook practice, particularly when he was young.
“My…work was a logical continuation of sketchbook practice. At the Cambridge School of Art it was drummed into us that we should not move, eat, drink or sleep without a sketchbook in hand. Consequently the habit of looking and drawing became as natural as breathing. It served its purpose not only by bringing one a feeling of freedom in drawing but also to store up a massive collection of detail in my head.” -The Association of Illustration Newsletter January-February 1977