Front Cover: Exploring Coumarin Derivatives for High‐Performance Metal Ion Detection (Anal. Sens. 2/2025)

The Review by Viktoriia S. Moskvina and co-workers highlights advances in coumarin-based fluorescent and colorimetric probes for selective metal-ion detection in biological and environmental samples. Sensing mechanisms—photoinduced electron transfer, excited-state intramolecular proton transfer, and chelation-enhanced fluorescence—analytical performance, and multichannel systems for sequential or simultaneous analyte recognition, with outlooks for imaging, monitoring, and computation-guided probe development are compared.