Desiderius Orban was a Hungarian australian artist. He wrote a very interesting book on the topic what is art - discussing images and reproductions of a range of artworks by different artists in different styles and from different eras. This book is very intelligent, clearly argued, the selected artworks illustrate concepts very clearly, and is pre post modernism.

Desiderius Orban was a western artist who was deeply influenced by Matisse, Van Gogh and Cezanne, and who also was a buddhist.
It is still available at some second hand bookshops in Australia and overseas.

What Is Art All About? by Desiderius Orban

you can see samples of his artwork here:

http://www.art-galleries-schubert.com.au/www/orban/Orban2/Orban2.htm