He was probably doing this: http://www.slate.com/articles/arts/culturebox/2010/10/confessions_of_a_usedbook_salesman.html http://www.slate.com/articles/arts/cu

He was probably doing this: http://www.slate.com/articles/arts/culturebox/2010/10/confessions_of_a_usedbook_salesman.html http://www.slate.com/articles/arts/culturebox/2010/10/confes...