A manuscript (abbreviated MS or MSS for plural) is any document written by hand or typewritten, as opposed to being mechanically printed or reproduced in some automated way. More recently it is understood to be an author's written, typed, or word-processed copy of a work, as distinguished from the print of the same. Before the arrival of printing, all documents and books were manuscripts. Manuscripts are not defined by their contents, which may combine writing with mathematical calculations, maps, explanatory figures or illustrations. Manuscripts may be in book form, scrolls or in codex format. Illuminated manuscripts are enriched with pictures, border decorations, elaborately embossed initial letters or full-page illustrations.