Consider how long it will take for an image to load over the network. Even with image caching now available too many images can quickly zap the memory on a standard workstation. Color surfaces translate better to computer monitors than lines, especially thin lines. When using vector graphics packages, where line drawings rather than surfaces dominate, lines thinner than three pixels, especially horizontal lines, do not transfer acceptably, unless you are using both a very high resolution image and monitor. Thin lines vibrate in an irritating manner as the single pixels try to define themselves in the coarse NTSC resolution.
Annotation Using graphs and scales to chart data is a common practice in presentations of all kinds.
It is, however, important to remember to explain to the viewer what these are meant to represent. Adding Images To take advantage of the multimedia aspects of sophisticated browsers you should be sure to add images to your documents. Not only will images add zip to text, they may serve as vital pieces of information in their own right and draw attention to html pa ges. Images are treated like text, they can be on the same line or separated with HTML page formatting characters. Filenames of X Bitmap images must end with .xbm and so on.