PDF versions of books so that we don't need to break our backs.
As stated in sections 107 through 118 of the copyright law (title 17, U. S. Code), the educational usage of these textbooks fall under "Fair Use." These texts are only to be downloaded by students currently attending Stuyvesant High School and taking a class that lends these textbooks. All works contain their individual copyrights, which must not be infringed upon by any end users.