I am a Parisian guy, I was born in Paris and live in Paris. I am École du Louvre alumnus of art history. I was a volunteer guide at Notre-Dame de Paris before the fire.
I would recommend this tour to everybody!
We were a group of 11 friends. Despite the tour's somber theme, Thierry made it not only light but very interesting. We saw different, for France history important places, and each spot was described with a great story and facts. As Thierry is an art historian he showed several little details in the Parise buildings that were made by worldwide-known artists. At the end of the tour, he advised the great place designed in art nouveau style for dinner. We spent a great time with Thierry and recommend choosing him for the tours to know Paris and Parisians closer.
Thierry was excellent, fluent, professional, courteous, humorous at times, we enjoyed the tour of less known places in Paris