Barnes & Noble is one of the largest bookselling companies in the United States. It offers a selection of books on trade, medicine and academic subjects. The company provides books through more than 700 stores, which also carry music titles of several genres that include classical, jazz and opera. Its stores are open seven days a week and offer lounge chairs and reading tables. Barnes & Noble also provides funds to nonprofit organizations working in the areas of literacy, arts and education. The company was founded in 1917 by William Barnes and Clifford Noble and is listed on the New York Stock Exchange. Barnes & Noble maintains a store in Frisco, Texas.