The following is a list of books I used for the majority of reference, although I did read many others not included;

The Amazing World of M C Escher. The National Galleries of Scotland.  Edinburgh.  2015

Art Since 1960.  New Edition, Archer, Michael.  Thames & Hudson world of art.  London. 2012

Drawing Now. Between the Lines of Contemporary Art. TRACEY. I B Taurus.  New York.  2007

Drawing Now: Eight Propositions, Hoptman, Laura.  The Museum of Modern Art, New York.  2002

Drawing Projects.  Maslen, Mick and Southern, Jack. Black Dog Publishing. London. 2014

Gombrich, E H (2011) The Story of Art, 16 Edition. London: Phaidon Press Ltd

‘John Bellany, Keith Hartley with Alexander Moffat, John McEwen & Paul Bellany.  National Galleries of Scotland 2012

Modern Art.  Flame Tree Publishing. London 2005

The Poetry of Place, Duncan Shanks sketch books and the Upper Clyde, Freight Books.  2015

The Two Roberts, Robert Colquhoun and Robert MacBryde, Elliott, Patrick.  National Galleries of Scotland.  Edinburgh. 2014

The 20th Century Art Book.  Phaidon 1996