One of the primary problems with any rich-prospect interface is that to show so much information at one time is to risk overwhelming the user. Designers working on interfaces based on rich prospect therefore have to pay special attention to strategies for eliminating the sense of being overwhelmed by the display. As discussed in previous chapters, the main strategies are to ensure that the individual items are represented in a meaningful way, that the tools for manipulating the organisation of those items are readily identified, and that the principle of organisation makes immediate sense.