42 Gradient Map adjustment layers to quickly get that awesome duotone look by placing your artwork in the psd file provided and turning the gradient map layer visibility on or off, or drag and drop the Gradient map layers into your own file! Suitable for Photoshop CS6+. Includes a layered PSD file with all 42 gradient map layers and a sample image, and a numbered preview image so you can easily choose your favourite effect. Please note these are not 'true' duotones with spot colors, but use adjustment layers to get the same look. Happy Designing!