Drawing is a form of visual communication that can be used to explore and represent ideas. It involves using various drawing tools to mark on paper or another two-dimensional surface. There are several types of drawings, including illustration drawings to represent layouts and details, life drawings to capture observations of the human form, emotive drawings to express feelings, and analytic drawings to clearly understand observations. Other types include perspective drawings to represent 3D images, diagrammatic drawings to document design processes, and geometric drawings used in construction fields requiring specific dimensions. Drawing is one of the simplest means to communicate visual ideas.