1. Visual Cues: Practical Data Visualization, P. R. Keller and M. M. Keller, IEEE Computer Society Press, 1992. (This books contains a few chapters on data visualization guidelines, and numerous visualization examples, each with a short explanation.)
2. Visualization of Natural Phenomena, R. S. Wolff and L. Yaeger, Springer-Verlag, 1992. (Contains a readable overview of many aspects of visualization. Book also includes a Macintosh CD-ROM.)
3. Volume Visualization, A. Kaufman (ed.), IEEE Computer Society Press, 1990. (An extensive compilation of research articles on volume visualization.)
4. Visualization in Scientific Computing, G. M. Nielson an B. Shriver (eds.), IEEE Computer Society Press, 1990. (Another collection of research articles on visualization. Covers a wide variety of topics.)
5. The Second Computer Revolution: Visualization, R. M. Friedhoff and W. Benzon, Harry N. Abrams, Inc., (1989). (This is a coffee table type book, but it does have a good overview of a few areas as well as a wealth of pictures.)
6. Computer Visualization, Graphics Techniques for Engineering and Scientific Analysis, Richard S. Gallagher (ed.), CRC Press, 1994.