vaults: After careful study of the original plan and site survey, the architect decided to take advantage of the limitations of dense column network and space division to implant another new space form—a vault, "eliminate" the existence of columns, transform the fragmented and impersonal parallel space into a "spiritual" space, accommodate the function of children's reading hall, and create a highly recognizable and symbolic learning place. Seven white vaults fall above the two rows of columns on the north side, encasing the columns in a "thick" arch wall.