I received a great compliment regarding my new book "Wer ist Mona Lisa? – Identifizierung einer Unbekannten mit Hilfe historischer Quellen", about which I am so happy: "...We are writing to you because we were deeply impressed by your outstanding results in the studies around the figure of Monna Lisa by Leonardo da Vinci ... Yours sincerely, L’assessore alla Cultura del Comune di Pavia,

Mariangela Singali Calisti