Scott A. Sant'Angelo is founder and owner of Arkitip, Inc., a contemporary fine art publisher. He is also a prominent photographer, curator, gallerist, and marketing consultant in the world of art that he serves. 

Robert Smithson
Most well know for his provocative earthwork, The Spiral Jetty made in 1970. He gained international recognition for his groundbreaking art which was not limited by genre or materials as well as for his critical writings that challenged traditional categories of art between the years of 1964-1973.

One of my personal favorites.