Drawing is a form of visual art in which a person uses various drawing instruments to mark paper or another two-dimensional medium. Instruments include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoal, chalk, pastels, various kinds of erasers, markers, styluses, various metals (such as silverpoint) and electronic drawing.

Creation and review of postoperative drawings are important adjuncts for the development of three-dimensional understanding of aneurysmal anatomy. This classic art has impact in the digital age and allows patterns of morphology, projection, and anatomy to be reinforced. Surgical atlases created from postoperative drawings function as reference and teaching tools. The creation of postoperative drawings should be a routine part of the training and methodology of vascular neurosurgeons ¹⁾.