The thesaurus Daniel Péchoin not leave me in my translation; he supplanted all dictionaries of synonyms and forces them to stay moist at the bottom of some dungeon. This book is reminiscent of the must Roget's Thesaurus. I did not give the Thesaurus Mr Péchoin 5 stars it deserves only because its use is hampered by an index, while very rich, fishing by its lack of definitions and thus forces the reader not only to learn more, but to seek the concept that interests among the articles Kyrielles. This, I believe, his only fault.