According to Wikipedia, "National Library Week (sometimes known as Libraries Week) is observed by a number of countries, initially just by the United States (since 1957). Artwork created for National Library Week at Loyola Marymount University, 2017. First sponsored in 1958, National Library Week (NLW) as observed in the United States is sponsored by the American Library Association (ALA) and libraries across the USA each April, typically the second full week. It promotes library use and support. In 1954, a nonprofit National Book Committee was established between the ALA and the American Book Publishers. Virginia Mathews served as Deputy Director and then Director of the National Book Committee. In 1957, the committee developed the idea for National Library Week, hoping that it would motivate people to read and support libraries."