Chalk pastel has been used to great effect by artists through the ages, from Leonardo da Vinci in the 15th century and Whistler and Degas in the 19th to Paula Rego and Roger Hilton

Chalk pastel has been used to great effect by artists through the ages, from Leonardo da Vinci in the 15th century and Whistler and Degas in the 19th to Paula Rego and Roger Hilton