This document provides instructions for drawing 2D objects in 3D using the oblique method. All horizontal lines must be drawn at 90 degrees, vertical lines at 0 degrees, and receding lines used to indicate depth should be drawn at 45 degrees. The example shows drawing a box where horizontal lines are at 90 degrees, and lines at the top are drawn at 45 degrees on each side to create the impression of a 3D box in oblique format.