His works can be best described as "Matter Paintings", he explores surfaces of different materials exposed to various kinds of destructive forces. The materials are mixtures of sand, marble, oxidized copper and powdered pigments that are all prepared by himself. The collages resemble aesthetic transience of earthy elements.

As he says: " In recent years I have incorporated [in my work] more and more themes relating to events affecting our environment such as the destruction of the rain forest, the tragedy of oil spills, chemical urban contamination. (...) There is a contradiction in the work in that physical and chemical processes are allowed to lead to the formation of serendipitous shapes, colors and textures and yet the resulting object must have a structural framework, an evidence of control, without which it cannot be called a work of art."

Tom Nonn's works have been included in many group and solo shows. Selected collections include: New York University, Loeb Center, Lehigh University, Betlehem, PA, University of Wisconsin, Whitewater, City University of New York, North Carolina National Bank, Collection of Armand Erpf. New York, Estate of the honorable Jonathan Bingham and many more.

SELECTED COLLECTIONS
Manhattan College, New York
John Jay College of Criminal Justice, New York
New York University Loeb Center, New York
Mint Museum of Art, Charlotte, North Carolina
Lehigh University, Bethlehem, Pennsylvania
University of Wisconsin, Whitewater, Wisconsin
City University of New York (KCC)
Cardinal Resources, Inc., White Plains, New York
Davis Computer Corp., Washington, D.C.
North Carolina National Bank, Charlotte, North Carolina
Aero Plantation, Waxhaw, North Carolina (sculpture commission)
Collection of Armand Erpf, New York
Subaru Art Collection, Tokyo, Japan
The S.J. Davenport Collection, Oakland, California
ESAI Pharmaceutical Co., Teaneck, New Jersey
Ladenburg & Thalmain Investment Bank, New York
ITG Computer Hardware Inc., New York
G. Potts Collection, Copenhagen, Denmark
A. Martinez, Banco Bilbao Vizcaya, Panama City, Panama
J. Hoffman Collection, Staten Island, New York
International Securities Exchange, New York
Chubb Insurance Co., New York
Rainer Suetfeld, ARD Television & Radio Co.
Keltex Corporation, Charlotte, North Carolina
Eaton & Van Winkle, Inv., New York
Morrison & Foerster Law Associates, New York
White & Case Law Associates, New York