19. A device, comprising: a display unit; a sensing unit, operable to sense input; a processing unit, operable to process the input, to divide a document into a plurality of segments; and to forward instructions to a display controller to highlight, zoom, or navigate through the identified document segments; the display controller operable to process the forwarded instructions and to generate a resulting visual representation for display on the display unit, wherein the processing unit is further operable to generate, for at least one of the plurality of segments, at least one keyphrase, which is representative of content of the at least one of the plurality of segments, and associate the generated at least one keyphrase with the at least one of the plurality of segments represented by the generated at least one keyphrase; and displaying a visual representation for each of the plurality of segments, wherein the position of each visual representation with respect to each of the plurality of generated keyphrases depends on a degree of relatedness between each of plurality of generated keyphrases and the corresponding segment.
19. A device, comprising: a display unit; a sensing unit, operable to sense input; a processing unit, operable to process the input, to divide a document into a plurality of segments; and to forward instructions to a display controller to highlight, zoom, or navigate through the identified document segments; the display controller operable to process the forwarded instructions and to generate a resulting visual representation for display on the display unit, wherein the processing unit is further operable to generate, for at least one of the plurality of segments, at least one keyphrase, which is representative of content of the at least one of the plurality of segments, and associate the generated at least one keyphrase with the at least one of the plurality of segments represented by the generated at least one keyphrase; and displaying a visual representation for each of the plurality of segments, wherein the position of each visual representation with respect to each of the plurality of generated keyphrases depends on a degree of relatedness between each of plurality of generated keyphrases and the corresponding segment. 23. The device of claim 19 , wherein the processing unit further comprises a memory unit operable to store processing instructions for identifying the plurality of segments of the document.