I've been itching to get this posted. The cover and title pages were designed by George Mayhew while everything else was done by John Goodwin. But the cover! A masterful bit of overprinting; the still vivid colours (just good old cyan, magenta and yellow) retain a really physical presence on the paper. Close scrutiny reveals delightful subtleties; like the eighth of an inch (this was pre-decimal of course) of pure magenta down the left-hand edge of the otherwise red colour bar, barely discernible against the yellow overprinted section and that word "Macbeth" just not quite aligned to the dark, purple panel where magenta and cyan coincide.
And inside it's just as good with heavy colour bars working with gaping white spaces. Even the back cover is intriguing with coloured inks overprinting solid black to create subtle changes in darkness.