What are the pro art pencils from lightest to darkest?

Pro art pencils are typically arranged from lightest to darkest based on their hardness grading system. The lightest pencils are usually H-grade (e.g., 2H, 4H), followed by F (fine point), B-grade (e.g., 2B, 4B), and finally the darkest pencils, which are 8B or higher. This gradation allows artists to achieve a range of tonal values, from fine, light lines to deep, rich dark shades.