Histoires hédonistes de groupes et de géométrie Tome 2

This book is essentially made to be read 1-2 pages each day. Probably the best book I’ve read in a while.
It’s a collection of grad/PhD level math results that are very well exposed, with a lot of fun and puns.
Phillipe Caldero and Jerome Germoni are very incredible authors ! Calvage is a very famous french math publisher for grad/PhD level books.