Dear colleagues, We are pleased to inform you that Volume LXIII-1 (1st quarter 2022) of the Cahiers is now freely downloadable from the website of the Cahiers: <http://cahierstgdc.com/> <http://cahierstgdc.com/> http://cahierstgdc.com/ both as a whole issue and as separate articles. With our best wishes for 2022, Andree Ehresmann, Marino Gran and Rene Guitart [For admin and other information see: http://www.mta.ca/~cat-dist/ ]