This directory contains files for Technical Report CSRI-400. The files in this directory are the following: 1) README (< 1 KB - the ASCII file you are now reading) 2) TR-400.ps (4075 KB - PostScript) 3) TR-400.ps.gz (2808 KB - PostScript compressed with the program "gzip") If you have the UNIX "gunzip" program, get the file TR-400.ps.gz. Remember to transfer the file in binary mode. After the transfer, "gunzip" the file. If you do not have the UNIX "gunzip" program, get the file TR-400.ps in ASCII mode. After transfering the file, print it on a PostScript printer. If you have any questions or comments about this technical report, please contact modjeska@cs.toronto.edu ABSTRACT: Desktop virtual reality (VR) offers a powerful environment for visualizing structure in large information sets. In well-designed virtual worlds, users can employ skills from wayfinding in real environments. This paper reports the development and testing of a series of prototype VR worlds, designed to support navigation during information visualization and retrieval. Among other results, users' subjectively rated sense of presence, ease of use and preference were all affected by degree of spatial cueing, but objective target-hunting performance was not. The virtual world with the strongest spatial cues caused poorer user performance than a comparable hypertext interface, but the virtual world was rated as more enjoyable. The final VR prototype was not significantly worse than hypertext in user performance; the prototype demonstrates the potential for designing navigable VR that is engaging, enjoyable and productive for everyday information exploration.