The workshop will bring together experts in the theory and observation of different methods used in the Extragalactic Distance Scale, to discuss current research activities and prospects for a 1% determination of H₀ within ten years.

The workshop will focus on:

1. the absolute calibration of primary and secondary distance indicators (including Cepheids, TRGB, RR Lyrae, blue supergiants, SNe Ia, surface brightness fluctuations, the Tully-Fisher relation and the fundamental plane);
2. theoretical advances in the modeling of distance indicators;
3. alternative routes to H₀ (such as BAO, lens time delays, and megamasers in the Hubble flow);
4. the synergy between direct determinations of H₀ and observations of the CMB and high-redshift SNe for the determination of cosmological parameters.