ASCII art is the process of creating an image with only the use of text characters and symbols. The technique is similar to the newspaper halftone printing.
Bracketing is a specific photography technique where the photographer takes the same photograph several times at sequential aperture sizes and exposure times.
Buddha Board is a meditative painting slate. Water is painted onto the stone board turning it a dark black color. As the water evaporates the painting fades.
Crosshatching is a drawing technique where the artist creates depth, perspective, and tones by layering a grid like pattern of parallel and perpendicular lines.