New Marek Krzysztalowicz´s new VII U-Boat book-really new?

[Sepp von Ch.]

Hello, gentlemen,
I have a question about new Marek Krzysztalowicz´s book : "Type VII: Germany's Most Successful U-Boats".


I have these two volumes of Marek Krzysztalowicz´s bilingual (polish and english) book U-Boot VII (from AJ Press publisher):


Vol. I - http://aj-press.home.pl/eow47.php

Vol. II- http://aj-press.home.pl/eow48.php

Now I read, that the publisher Pen and Sword issued a new Marek Krzysztalowicz´s book Type VII: Germany's Most Successful U-Boats - http://www.pen-and-sword.co.uk/Type-VII/p/3475/


I am interested, whether this new book (its contents) is the same as in these 2 books published by the same author from the publisher AJ Press.


I do not want to have two identical books.