This document discusses using line to create value and depict form. It introduces six line techniques to convey value: straight lines, crossing lines, scribbled lines, zig zag lines, and two invented techniques. Readers are instructed to use a variety of these line techniques to draw part of a photo, focusing on accurate shapes, proportions, values, details, and craftsmanship. A pencil sketch should be followed by use of markers to add tonal variety through line thickness.