Study drawings may not always be beautiful, but they are almost always interesting. First, familiarize yourself with the world and market of artists or schools that appeal to you. On the drawings themselves, check carefully for signatures, inscriptions or marks that may provide clues to the artist's identity. However, drawings used as working tools often lack any identifying marks. In these cases, do not be afraid to seek out an expert eye they can often read a drawing as if it were familiar handwriting.
Condition is also critical.
One way to find a bargain is to look carefully at framed items in second-hand shops. Sometimes a sketch is sold as a print at a bargain price. Trust Your Eye Buy what pleases you. What you think is beautiful is more important than anything else. Tastefully done, mirrors effectively and affordablty expand and brighten smaller spaces.