Abstract: This poster will introduce the idea of integrating floor and shelf maps into the OPAC. Current OPAC displays bibliographic records only to library users. Many users have difficulties in locating an item even if they have a call number of the item. The readers may be unfamiliar with collection arrangements. Or, the library floor structure is too complicated. Maps of library floors and shelves, if integrated into library catalogs, will help users easily locate items. The maps can be interactive so that they can dynamically respond to catalog searches and display the exact location of the item being searched.