Wonderful. Thank you, J.J.
The PSO/NSNA question is indeed as Zen suspects: PSO was the international sales organization for the film and they had designed their own artwork for the film that local distributors could use in case they were not going to design their own local art. In Benelux e.g., the Belgian distributor used the design and based their own local (small) poster on it but in Holland -a different distributor- simply ordered an x number of these international one sheets and shipped them into theatres.
After sending DK an email containg 55 seperate comments concerning the errors and text omissions in the book they have now apparently pulled it from Amazon.
I understand they now intend to reprint it in a corrected version.