People think by pursuing career in sketching does nothing, it is a waste of money.
But as per my opinion it is a best talent you have in you. Now a days sketching have equal importance in a world. by sing your sketching skills, You can become fashion designer, cartoonist, Jewellery designer and many more things you can do.

A sketch (derived from Greek σχέδιος – schedios, "done extempore") is a rapidly executed freehand drawing that is not usually intended as a finished work. A sketch may serve a number of purposes: it might record something that the artist sees, it might record or develop an idea for later use or it might be used as a quick way of graphically demonstrating an image, idea or principle.

Sketches can be made in any drawing medium. The term is most often applied to graphic work executed in a dry media such assilverpoint, graphite, pencil, charcoal or pastel. But it may also apply to drawings executed in pen and ink, ballpoint pen, water colourland oil paint. The latter two are generally referred to as "water colour sketches" and "oil sketches". A sculptor might model three-dimensional sketches in clay, plasticine or wax.