Office supplies is the generic term that refers to all supplies regularly used in offices by businesses and other organizations, from private citizens to governments, who works with the collection, refinement, and output of information (colloquially referred to as "paper work").
Many businesses in the office supply industry have recently expanded into related markets for businesses like copy centers, which facilitate the creation and printing of business collateral such as business cards and stationery, plus printing and binding of high quality, high volume business and engineering documents. Some businesses also provide services for shipping, including packaging and bulk mailing. In addition, many retail chains sell related supplies beyond businesses and regularly market their stores as a center for school supplies with August and early September being a major retail period for "Back to School" sales.
The office supply industry was estimated to be worth US$ 225 billion in 1999 and is still growing.1As of 2006, the largest office supply chains in the United States (in terms of revenue) are Staples (US$16B), Office Depot (US$15B), and OfficeMax (US$8.9B).