
An approach to drawing technique based on observation covering contour and gesture, model drawing, memory in ink and watercolor; anatomy study, drapery, shade, structure, and other topics in drawing.
And then you also have to learn some "shape literacy" if you want to control how you see things. This is likewise comparable to learning to read in that there are ways of breaking down images to understand them as "letter", "word", and "sentence".
When we know how to write but not to draw, we draw like we write, using motions from the wrist and observing things in terms of symbolic meaning - the human figure flattens out into a hand shape, an arm shape, an eye shape.
But there's very little mystery to "what do you do about that" - you grab a book of exercises like Keys to Drawing or Natural Way to Draw, and you try to see the object you want to study through the exercise. Because we recognize silhouettes first, and we make marks as lines first, contour drawing is a typical starting point for practicing both "seeing" and "doing", and that's something you can spend many months on just by itself.
If you want to force a designed result, rather than the result from your eye and hand, you start to apply technology, and that can mean a very old technology like using a grid and rulers(as old as the ancient Egyptians), or it can mean digital tools and tracing over photos.
It’s weird to find something that can be so easily answered but there it is. Truly great books.