Many methods of ornamental tiling are traditionally used in Iran: includingbanna-i, faience, lustre, cuerda seca, as well as various monochrome and blue and white tiles.
This image shows banna-i tiling, which uses alternating small glazed and plain tiles to make patterns or, top left, words. Banna-i tiling is constructed by laying the pieces of tile face down, as shown here. When the pattern is complete, the whole thing is plastered together from the back, before turning it face-up into position. [C.T.1]