I think it would be interesting to have a cover  design using lines for unique perspective and to give it an illusion effect (?)

tracing paper cross contour drawing, layered over a photograph to explore three dimensional form - try it.

Lips are hard to draw, this is a good demonstration of how to do it.

17 Diagrams That Will Help You Draw (Almost) Anything

kolay çizim - Google'da Ara

(I should teach my son this!) Start with an arrow, end with a cute birdie! Great way to teach kids how to draw birds!

easy drawings bird

Even if you're totally artistically impaired, you can still become the Picasso of your generation.