A one-day workshop, on the 19th of December, to gather the French community interested in SKA sciences cases related to the high redshift universe. A non-exhaustive list of topics include:

- The 21-cm signal from the Epoch of Reionization (theoretical, numerical, prediction for the SKA, observations LOFAR and NenuFAR as a pathfinder for the SKA)

- Cross-correlations with other signals (CMB, CII, CO, galaxies)

- HI intensity mapping at z<6

Where: Enter the Observatory at 77 av Denfert Rochereau, 75014 Paris (Station Denfert-Rochereau, Metro 4 or 6 or RER B). Proceed to "Salle Denisse" (ask directions for to security staff).