The present invention provides a method for producing auditory renderings of digitized works and, in particular, digitized documents containing complex mathematical expressions. Documents are first entered into a computer system and formatted with a markup language, such as one of the TeX.RTM. or LaTeX.RTM....http://www.google.co.uk/patents/US5572625?utm_source=gb-gplus-sharePatent US5572625 - Method for generating audio renderings of digitized works having highly technical content