Screens were first introduced to Japan from China. A number of methods of hinging evolved, so that two or more panels could be joined to form a continuous flexible unit. The most successful form of screen construction, still in use today, was the system built over wooden lattice cores, lined and hinged with paper. The construction and repair of folding screens involves the following procedures: building of the cores, lining of the cores, joining the cores with paper hinges, repair of the artwork, attachment of the artwork and silk borders to the obverse and paper to the reverse of the screen, attachment of wooden trim and metal fittings to the edges of the screen, and provision of a storage box. Despite their lightness and strength, folding screens are easily damaged by careless handling and poor storage conditions; due care should be given to both these points. -- AATA