The encyclopedia of pastel techniques / Judy Martin.

by Martin, Judy
Published 1992

Pastels / Ian Sidaway.

by Sidaway, Ian
Published 1996

Pastels for beginners / Francisco Asensio Cerver ; Illustrations by Vicenc Badalona Ballestar and photography by Enric Berenguer.

by Cerver, Francisco Asensio
Published 2005