Digital BW, The Print

john dean writes:
 > Can anyone refer me to a good tutorial with specific examples of
 > working with duotone, tritone, and quadtone, files? There must be
 > something good online. I've done very little of this since I don't
 > generally output to offset.

It's not online, but I've found Nick Clark's "Duotones Tritones and
Quadtones" (ISBN 0-8118-1426-2) to be a good read.

g.