A hand sketch is an excellent way to quickly convey the feeling of a space. The finishes, colors and textures can be added or changed to express options available to a client. These sketches can be digitized and for use in marketing material or presentations if required. Sketching allows the concepts to be portrayed in an organic manner. Time spent for a hand rendering does not have to be as consuming as a 3D Revit model. It allows the viewer to make changes and participate in the process before arriving at a completed design.