Visual Library is a document database which models physical filing system and integrate to the computer file system, web browser and/or server database. It organizes electronic documents in forms of books, bookshelves and libraries and makes PC users and network users easily build up and maintain the database with their real world filing experience. With featured look-and-feel, users can easily locate and access the required documents out of thousands of them in old library fashion. Incorporated built-in database engine and the automatically updated indexes further speed the document retrieving as known. Knowledge management is implemented with perfect combination of conventional IT wisdom and high technologies.