The french THEIA Data and Services Centre for EO organized on 11 October 2021 a one-day workshop on forest remote sensing. More than a hundred participants attended this workshop with various presentations and discussions related to tree species classification, biomass estimation, deforestation monitoring in tropical regions, mapping health status, detecting forest fires… The presenations can be found here https://www.theia-land.fr/foret/foret2021/. You will find my presentation on the detection of poplar plantations using Sentinel-2 time series (PhD findings of Y. Hamrouni).