Sending the file as an attachment to an e-mail message avoids the problem of losing the tail end of long files. I f your organization has an anonymous ftp site, we can pick up your files from there, or you can deposit files onto our ftp site. These guidelines should help you submit art that will print well. Color separation and printing do not improve bad pictures, so try to send us your best. In most instances, negatives reproduce better than prints.
Electronic files are optimal, of course.
Note that electronic manipulation of color files imposes a color shift, based on the algorithm used to convert from RGB to CMYK color. Contrast is very important. Different areas of color need to have sharp edges to reproduce well, unless you are trying to show soft gradations of color. Areas of color without sharp edges will probably print a bit muddy. They need more contrast.