John Wiley & Sons is a global publisher of print and electronic products, specializing in scientific, technical, and medical books and journals; professional and consumer books and subscription services; and textbooks and other educational materials for undergraduate and graduate students as well as lifelong learners. Wiley publishes in a variety of formats. The company provides 'must-have' content to targeted communities of interest. Wiley's deep reservoir of quality content, constantly replenished, offers a tremendous source of competitive advantage. Technology is making this content more accessible to customers worldwide and is adding value for them by delivering it in interactive and/or fully searchable formats. The publishing company was founded in 1807, during the Jefferson presidency. In the early years, Wiley was best known for the works of Washington Irving, Edgar Allan Poe, Herman Melville, and other 19th century American literary giants. By the turn of the century, Wiley was established as a leading publisher of scientific and technical information. The company has more than 3,500 employees worldwide, with operations in the United States, Europe (England, Germany and Russia), Canada, Asia and Australia. Wiley has U.S. publishing, marketing and distribution centers in New Jersey, California, Virginia, Illinois, Indiana and Ohio. Wiley's worldwide headquarters is in Hoboken, N.J.