Campy sci-fi book series published in Spanish throughout the 1970s, as seen on Mundo Bocado. Many more examples, complete with art and design credits, at Le Tercera Fundación.
Photo(s) by “Sergiy Tkachenko” on Flickr.
Contributed by Florian Hardwig
Contributed by Font Bureau
Contributed by Stephen Coles
Contributed by Indra Kupferschmid