abba and the mystery of century 22 publishing

Searching for books released by Gerry Anderson's publishing arm, Century 21 Publishing Ltd, can be a lot of fun.

Occasionally searches cough up a curve-ball ... or should that be a fur-ball?

One such book is this on Abba Intermezzo, a German ABBA book list site:

ABBA: A Lyrical Collection

At some point in the early '80's Century 21 must have picked up a licence to market ABBA joining dozens of other publishers at the time.

For some reason this is the only book I can find that Century 21 published. It's listed as being published by Century 21 Merchandising and not the publishing arm, which may have folded by 1982 [I have previously found an ABBA poster from 1982 as well].

The real mystery are these further four ABBA publications listed on Abba Intermezzo, the Abba books website, including one re-issue and a magazine.

They were released by Century 22 in the early 1990's from the same location as that listed for Century 21 in the 1980's, namely Iver Heath in Bucks!

So just who are Century 22?

Any ideas readers?