Handmade Unison Pastels by John Hersey... Unison pastels are the creation of artist John Hersey. From a converted coachhouse in Northumberland, England, John and a small band of artisans lovingly make Unison pastels by hand, cutting no corners, accepting no compromise. They make small batches of 100 to 200 pastels at a time. Each stick is hand rolled and allowed to air dry. This produces a soft pastel which is eager to embrace the tooth of your drawing paper. There is a richness, a smoothness, an intensity you will find nowhere else. John Hersey developed Unisons color scheme in unified cycles of 18 colors. He observed from nature that a single color takes on endless variations of hue, depending on the quality of light that strikes it. After 15 years of experimentation, his pastels reflect the true nature of color. They have a color scheme that flows from nature itself, seducing the eye with its power. Unison pastels are a work of art themselves! One of our customers actually gets tears in her eyes looking through the Unison colors, and she says these are just so incredibly beautiful, my heart races when I see the endless array of color. Color charts are available upon request.