This wonderful book by Italian mosaicist, Angelo Cangemi, is a gem. Imported from Italy but written in English, it contains detailed instruction on making mosaics, from an Italian's point of view. Included are sections on materials, tools, techniques (including double-reverse method and using a mosaic hammer/hardie), color, design, and so much more. Filled with tons of work-in-progress photos. Even the most experienced mosaicist can learn something from this wonderful resource book.