I am writing an essay in German about a book that I have read. I want to write that it was written by Niccolo Ammaniti. It is called I am not afraid. I am confused as to what form to use. Should I write:
Es ist von Niccolo Ammaniti geschrieben worden.
Es ist von Niccolo Ammaniti geschrieben wurden.
And a little insight as to the difference of the two will be very much appreciated. Also, what form of sein should be used: ist or war?