In consulting on or creating a Web site designed to use works of art for teaching purposes, it is extremely important to be aware of the differences between seeing an artwork "in the flesh" and in reproduction. Museum educators are highly aware of this disparity and are therefore eager to have students visit museums to experience authentic works…

For more than 150 years, printers have been faithfully reproducing continuous tone originals using halftoning techniques. For about 120 years, printers could only use the AM halftoning technique invented by Henry Talbot. In recent years, the advent of powerful raster image processors and high-resolution output devices has increased the variety of…

This article examines what is implied by the term "trusted" in the phrase "trusted digital repositories." Digital repositories should be able to preserve electronic materials for periods at least comparable to existing preservation methods. Our collective lack of experience with preserving digital objects and consensus about the reliability of our…