pp. 3–4A message from the president//Brief words from the editor-in-chiefJan Philip SolovejDonatella Donatelli
pp. 5–14Big mathematics – reflections on the history of the Classification of Finite Simple Groups, 1950s to 1980sVolker RemmertRebecca Waldecker
pp. 25–27Under the hood of a carbon footprint calculatorIndira ChatterjiAriadna Fossas TenasElise Raphael
pp. 28–34In memoriam Klaus Krickeberg (1929–2025)Helga ZeileBernhelm Booß-BavnbekKlaus DietzNguyễn Xuân XanhHans Zessin
pp. 35–36The illusion of scientific authority: from misleading propaganda to dormant realitiesMohammad Sal Moslehian
pp. 40–43Digitisation of scanned reviews from zbMATH OpenBela GippIvan PluzhnikovMoritz SchubotzOlaf Teschke