Where does the mail go? : a book about the postal system

Comprehensive statement on postal operations

Postal bulletin

Postal facts

Cost of handling mail matter : letter from the Postmaster General, in response to Senate Resolution 269, agreed to December 2, 1924, transmitting report on cost ascertainment showing the cost of handling the several classes of and of conducting the special services for the fiscal year 1923, with appendix. In two parts. Part I. December 3, 1924. Referred to the Committee on Post Offices and Post Roads and ordered to be printed, with illustrations

Mailing standards of the United States Postal Service. Domestic mail manual

The economics of universal mail post PAEA hearing before the Subcommittee on Federal Workforce, Postal Service, and the District of Columbia of the Committee on Oversight and Government Reform, House of Representatives, One Hundred Tenth Congress, second session, May 8, 2008

Implementation of the Postal Accountability Enhancement Act of 2006 hearing before the Subcommittee on Federal Workforce, Postal Service, and the District of Columbia of the Committee on Oversight and Government Reform, House of Representatives, One Hundred Tenth Congress, second session, February 28, 2008

The Postal Accountability and Enhancement Act of 2006

U.S. Postal Service mail delivery efficiency has improved, but additional actions needed to achieve further gains : report to congressional requesters