Art
The Nude in Art, due soon
Monet, 2011
Chris Gollon: Humanity in Art, 2010
Fifty Paintings You Should Know, 2009
The Dog: 5,000 Years of the Dog in Art, 2008
The Horse: 30,000 Years of the Horse in Art, 2006
Van Gogh
Impressionism
Turner, Whistler, Monet
Charles Rennie Mackintosh
1001 Paintings You Must See Before You Die (contributor)
1001 Buildings You Must See Before You Die (contributor)
501 Great Artists (contributor)
501 Great Writers (contributor)
Horse
Budget Horse Care, due 2009
The Horse Lover's Bible
Ponies
The Encyclopedia of Horses and Ponies
Pferde Rassen
Travel
A Taste of Ireland: Landscape, Culture and Food
The Secrets of Tuscany
The Secrets of Britain
1001 Historic Sites You Must See Before You Die (contributor)