There are thousands of drawing related careers in the market. The fact that printers and digital photo editing tools are taking over the market does not mean that a fine artist with a set of pencils is good for nothing. Actually, if you can perfect the art, your sketches and paintings will always fetch a better price than print set ones. Mastering your technique in time could put you somewhere, either locally or internationally. Это и многое другое вы найдете в книге Drawing For Beginners