Value is light and dark and the grays in between.
Value is measured with a value scale. there is a value scale for black and white, color, complements, tints and shades and about whatever an artist needs as they can be helpful seeing changes of light as well as its reflection on a surface.

chiaroscuro-valuescale.jpeg
chiaroscuro-valuescale.jpeg

value scales in pencil

below, the grades of pencils. the numbers reveal the hardness or softness of the graphite. H =hard, B =soft

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161405.image0.jpg


th.jpegcomplementary color scalesExercise 6_Shading Objects-1.jpg
The parts of a shadow or shading do not change.

values-sheridoty-2009_img_9-1-1.jpg
values-sheridoty-2009_img_11.jpg

NoseShading_1.jpg
NoseShading_1.jpg


ShadeValueSphere.jpg
ShadeValueSphere.jpg

some of the parts of a shadow and shading

chirico9a.JPG
chirico9a.JPG

geo.jpg
geo.jpg
in a nut shell, shading and shadow are, opposite light as shading and shadow are defined as the absence of light.

value.jpg

for an exercise i like to change things around by reversing black and white as on the ice cream below
IMG_3887 6.JPG