Here is where you can find us on Tuesdays and Fridays:
The Leiden Centre of Data Science (LCDS)
Sylvius building, 1st floor, office 1.5.11
2333 BE Leiden
0031 71 527 7043
On other days, we all have our offices spread over the Leiden University campuses in Leiden and the Hague.
You can send an email to: s.verberne[at]liacs.leidenuniv.nl