Typesetting is the composition of text material by means of types.^[1] Typesetting requires the prior process of designing a font and storing it in some manner. Typesetting is the retrieval of the stored letters (called sorts in mechanical systems and glyphs in digital systems) and the ordering of them according to a language's orthography for visual display. The TeX system , developed by Donald E. Knuth at the end of 70s, is another widespread and powerful automated typesetting system that has set high standards, especially for typesetting mathematics. TeX is considered fairly difficult to learn on its own, and deals more with appearance than structure. The LaTeX macro package written by Leslie Lamport at the beginning of 80s, offered a simpler interface, and an easier way to systematically encode the structure of a document. LaTeX markup is very widely used in academic circles for published papers and even books. Standard TeX does not provide a WYSIWYG interface, though there are programs such as LyX and Scientific Workplace that provide one. Another WYSIWYG editor very much inspired by TeX is TeXmacs . LaTeX is most widely used by mathematicians, scientists, engineers, philosophers, linguists, economists and other scholars in academia .^[a][b] As a primary or intermediate format, e.g., translating DocBook and other XML -based formats to PDF , LaTeX is used because of the high quality of typesetting achievable by TeX. The typesetting system offers programmable desktop publishing features and extensive facilities for automating most aspects of typesetting and desktop publishing, including numbering and cross-referencing, tables and figures, page layout and bibliographies . ^[3]