ProQuest Information and Learning provides access to information from periodicals, newspapers, out-of-print books, dissertations, and scholarly collections in various formats.  Its archive includes more than 5.5 billion pages of information, spanning 500 years of scholarship, in formats that range from print to microform to digital.  Known for its strength in business and economics, general reference, humanities, and scientific/technical/medical content, ProQuest Information and Learning serves academic, public, corporate, and K-12 libraries, in addition to K-12 classrooms and higher education students and faculty.
 ProQuest's market penetration, global sales force, and extensive line of aggregated databases provide the tools that make access to information fairly easy.  By joining over 4,000 publishers that entrust their information to ProQuest's electronic databases, the firm allows branded content to become available to a broad base of subscribing customers.  ProQuest's range of specialized, subject-oriented databases are delivered to school, library and research communities everywhere, and their classroom products take content selected by educators right to students' desktops or into their classrooms.  The ability to search for information across hundreds of publications at a time makes ProQuest databases very useful for students and researchers.