The PBBY is a private, non-stock, non-profit organization committed to the development of children’s literature in the Philippines. It is the Philippine National Section of the International Board on Books for Young People (IBBY), a world organization founded in Zurich in 1953 that promotes international understanding through children’s books. The PBBY is the lead agency in the celebration of National Children’s Book Day (NCBD). This is celebrated every third week of July to commemorate the anniversary of the publication of Jose Rizal’s "The Monkey and the Turtle" in Trubner’s Oriental Record in London.