1. A computer-readable material including program instructions for a computer executable method of presenting a document in a medium, the document comprising one or more organizational components, at least one component comprising one or more sub-components, the method comprising: receiving content, the content comprising information corresponding to the at least one component and to the one or more subcomponents; receiving a design description, the design description comprising data defining relationships among document components and subcomponents; receiving a media specification, the media specification defining regions and related subregions of the medium, wherein the content, design description and media specification are independent of one another, one of the regions and related subregions specified by the media specification are respectively associated with the at least one component and the one or more sub-components, and the information corresponding to the at least one component and to the one or more subcomponents is respectively associated with the at least one component and the one or more subcomponents; and laying out the content using the design description and the media specification such that the content is arranged to fit the medium, the information corresponding to the at least one component is placed in the respectively associated region, and the information corresponding to the subcomponents is placed within the respectively associated subregions.