Francis Bacon

[Ginger]

Friends,

In connection with the opening of the exhibition of Bacon in the El Prado in Madrid, decided to update the memory of his biography on Wikipedia, and subtract the following point:
"He returned to Germany in 1930. A dramatic studio portrait taken of Bacon by Helmar Lerski, a Swiss photographer and cinematographer, probably dates from this visit. Bacon was later to tell Stephen Spender that he had been very impressed by the work of a photographer who had produced striking effects using mirrors and natural light filtered through screens, but that he could not remember the artist's name. "

I understand that this may not be the most important thing in his life, but very curious to see this picture. Searched in Google, not much help. Maybe someone could throw a link to this masterpiece?
And yet, anyone can recommend a book, which describes the interesting biography of Bacon??

Thanks in advance!