Ashok Roy

National Gallery Technical Bulletin

2017

Psychiatry of Intellectual Disability

2018

Impressionism

1991

Holbein's Ambassadors

1997

Artists' Pigments

1997

Raphael's painting technique

2007

Painting techniques history, materials and studio practice

1998

National Gallery Technical Bulletin : Volume 32 : Leonardo da Vinci

2011

National Gallery Technical Bulletin: Volume 27

2006

Music makers

2004

HoNOS-LD

2003

Frans Hals

2021

Degas

2004

Artists' Pigments : A Handbook of Their History and Characteristics

2007

Colour

2000

Art in the Making

1988