Count. A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared. Library has the functions of preserving human cultural heritage, developing information resources and participating in social education. 2000 square meters is about 4.762 standard basketball courts, so the 2000 square meters library is very big. The basketball court is a rectangular three-dimensional plane with no obstacles in it. The spacing shall be measured from the inner edge of the boundary.