Monochromatic Painting: a painting consisting of only a single color running the range of its value.
During my junior year at college, my painting professor suddenly announced to the class that I was too dependent upon color to carry my paintings and that I could only paint monochromatically for the remainder of the semester. This command terrified me because I secretly knew that color was a crutch for me.
I soon discovered that the most effective way for an artist to concentrate on form is to remove the emotional issue of color. Monochromatic painting also forces the artist to concentrate on atmosphere, detail, texture and, most importantly, value.