In the recent 25th-anniversary issue of Immobilien Zeitschrift, a German magazine dedicated to the real estate business, there is an excellent article on the Palmarian Church, written by Friedhelm Feldhaus. You may think that a real estate magazine is not the most obvious place for such an article, but to some extent, it is focused on the construction of the huge basilica in El Palmar de Troya.
Friedhelm Feldhaus has done excellent research. He read much of the recent texts on the church, but he also went to El Palmar, entered the basilica and interviewed a number of people in the town and elsewhere. In short, the article provides the reader with an unusually good introduction to the history and current status of the Palmarians.
So if you read German, I really recommend the piece, and even if you don’t, look at the images. I have never seen a better picture of the whole church compound from above.