POWER OF ATTORNEY


	The undersigned director of A. Schulman,
Inc., a Delaware corporation, hereby constitutes and appoints each of J.
Bret Treier and Aaron S. Berke his or her true and lawful attorneys-in-fact
and agent(s) with full power of substitution and resubstitution for him or
her and in his or her name, place and stead, in any and all capacities, to
sign all Securities and Exchange Commission Forms 3, 4, 5 and 144,
including any and all amendments thereto and all electronic application
forms therefor, and to file the same, and other documents relating thereto,
with the Securities and Exchange Commission, and grants unto said
attorney(s)-in-fact and substitute(s) full power and authority to do each
and every act and thing requested and necessary to be done in and about the
premises as fully to all intents and purposes as he or she might do in
person, and hereby ratifies and confirms all things that said
attorney(s)-in-fact and substitute(s) may lawfully do and seek to be done
by virtue hereof.

	This Power of Attorney shall be valid until such
time as it is revoked by the undersigned in writing.


Date: 	August
3, 2005		/s/ James A. Karman