User:Neuralia/sandbox

"International Association of Pastel Societies"

https://www.amazon.com/Pastels-Unleashed-Margaret-Evans/dp/1844489086

https://www.amazon.com/Art-Chalk-Techniques-Inspiration-Creating/dp/1631590669

https://www.amazon.com/Art-Pastel-Painting-Alan-Flattmann/dp/1589804074