Via Mushroom People. From the book’s colophon:
Filmset in England by Keyspools Limited, Golborne, Lancastershire. Set in 12p Optima
There’s no designer credit, and no mention of the title typeface (did they want to keep this secret to themselves?). It’s Milton Extrabold, the heaviest member of a typeface family that originated at Face Photosetting, London, and is credited to Tony Geddes, 1968. It’s a good option for situations when Windsor just isn’t wacky enough. Here it’s used with one of its alternate M’s, a right-leaning form with a sprawling, cyma-like swash extension. Milton is also known under the names Musketeer and Melbourne. Mecanorma’s digital Milton has a single light weight only. A digitization of the Extrabold is included in Musketeer by Compugraphics, now available from Monotype, as well as in Melbourne, but both lack the original alternates.