AUTHOR : S. Tabachnikov : EDITOR/ART : R. Ghrist : This review concerns the following preprint: M. Bialy and A. Mironov, The Birkhoff-Poritsky conjecture for centrally-symmetric billiard tables, https://arxiv.org/abs/2008.03566 Now published:  M. Bialy, A. Mironov.  The Birkhoff-Poritsky conjecture for centrally-symmetric billiard tables.   Ann. of Math. (2) 196 (2022), no. 1, 389–413.  The dynamics of a billiard […]