The importance of drawing

I decided to do a proper drawing of this set up before painting it as previous attempts at painting this bowl without planning first have resulted in failure! I use a small grid drawn on acetate in the same proportions as my painting and look through it at the set up marking edges on a grid drawn on paper to the same size as the painting, then spend time observing and making a proper drawing on the paper, subsequently transferring it to my painting board. If this sounds confusing I'm sorry, I will try to clarify in future posts with photographs of how I go about it! Oil on canvas board 8 x 6 inches.