In recent years, April 23rd has been a special day for the employees of ProQuest. It has been a time to recognize and celebrate World Book Day, also known as World Book and Copyright Day. This annual event first started on April 23, 1995, organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO), to promote reading, publishing, and copyright. As a company whose entire business revolves around books and libraries, ProQuest has celebrated this day in years past by encouraging employees to dress up as characters from their favorite books.