Works in this category feature two-dimensional elevation and three-dimensional "one-point" perspective sketches. The purpose of this class and the projects is to learn to draw and sketch interior spaces and elements without using a straight edge and draw them freehand, with no scale reference. This type of drawing is not drawn accurately to scale but can be created much quicker and still tell the design story that a detailed/scaled drawing can. Students begin with a black and white pen sketch and then provide another copy of that drawing that is marker rendered.