On 18 March, during Semaine des maths 2016, La Poste will honour the mathematician Sophie Germain by issuing a stamp bearing her likeness, and you can get an exclusive first look at the design right here. A temporary office set up at the Institut Henri Poincaré (Paris, 5th arrondissement) will welcome all philatelists and mathematicians wishing to acquire the "First Day" envelopes and documents that day. The stamp will then be available in every post office. Other activities and exhibitions around Sophie Germain are also planned at the IHP starting in March: they will be announced in our next issue.