pp. 3–4A message from the president / Brief words from the editor-in-chiefJan Philip SolovejDonatella Donatelli
pp. 11–15No survival for an elderly mathematician: Felix Hausdorff’s failed emigration and deathReinhard Siegmund-Schultze
pp. 29–38Interpreting convex integration results in hydrodynamicsGregory EyinkHeiko GimperleinNigel GoldenfeldMichael GrinfeldIlya KarlinRobin J. KnopsFlorian KogelbauerOndřej KremlColin McLartySimon MarkfelderMikhail OsipovMarshall Slemrod
pp. 39–43Reviving Ukrainian science: International Centre for Mathematics in Ukraine (ICMU)Andrii Khrabustovskyi
pp. 49–52Statistics and data science education as a vehicle for empowering citizens – short summary of a surveyRolf BiehlerTakashi KawakamiErna LampenTravis WeilandLucía Zapata-Cardona
pp. 59–63Wikipedia and zbMATH Open: Connecting several layers of mathematical informationHamid RahkooyMoritz SchubotzOlaf TeschkeMarcel FuhrmannNicolas RoyDaniel Mietchen
pp. 64–67Book review: “Topology for Beginners” by Noor Muhammad, Asghar Qadir and Imran Parvez KhanM. Ali Khan
pp. 65–67Book review: “Do Plants Know Math? Unwinding the Story of Plant Spirals, from Leonardo Da Vinci to Now” by Stéphane Douady, Jacques Dumais, Christophe Golé, and Nancy PickAdhemar Bultheel