I sent the book "Happy Fountains" to an important politician in Switzerland. And I got an answer, which made me very happy. Thank you!
Translation:
"The delivery of your wonderful photo book “Happy Fountains” brought me joy. I found the photos as well the accompanying texts inspiring. The play with the light results in a special effect and through it grants the viewer a new view on the known place in Bern. When I look at the photos on a hot day, I can feel the refreshment of the cool water. Thank you very much."