Acknowledgements:

I want to thank my children, Tal Livnath, Léa and Yona, because they are always, or almost, a good audience, and my mother for her compliments. My husband, Daniel, for the proofreadng of the tax expemtion text and for his unwavering support. Simon who talked me into working on my photographies under the scope of numerical technologies. Odile Ouizeman for her advices, especially related to sublimography. Frank Abtan for his advice as an accountant. Jérôme Desbordes in his quality of wordpress instructor. Catherine Méchoulan, Yoram Bouzaglo, Ilan Danone for their critical outlooks on my works. And Antoine Darmon for his availability, listening, and for the redaction of the editorial.