James Turrell has dedicated his practice to what he has deemed perceptual art, investigating the materiality of light.
— Read on www.pacegallery.com/artists/james-turrell/
This should be fascinating may be I shall get in to light after all.
I like what he says and writes.
I like the type and the way it has been laid out in going to print it to see if it just comes out the way it looks like it will.
The pace web site and the artist web site both have the same feel. The artist is present.
Reading up on materiality 
I think there is a strong element of this in my work. Although not materiality for the sake of materiality I like there to be an element of meaning to the materials I choice to use. Some times I only really understand the choices I made when I feel I have finished.
Often there is a little leap of faith or intuition involved.