LaTeX is a text-processing system derived from Tex, a program developed originally in 1977, for authors or those in printing to help them layout their work professionally, similar to the job function of a typesetter. A typesetter is a person who keys in text to be printed and styles it according to specifications for the document is primarily concerned with the look and visual quality of the work. An author writing the document is not only concerned with the look of the document, but in the end is responsible for all facets of the work, including the look and the content. LaTeX was created to bridge the gap between the author and the typesetter, to give the creator the ability to compose complex documents, but also use the professional layout and the high quality typography offered by Tex.