Abstract: The last decade has seen a tremendous improvement in theoretical
understanding of galaxy clustering on cosmological scales, which culminated in
recent CMB-independent measurement of cosmological parameters from
spectroscopic galaxy surveys. In this talk I will review the main conceptual and
practical developments which led to this progress. I will also highlight the main
lessons we learned so far and discuss further improvements that have to be made in
order to optimally extract information from the ongoing galaxy surveys such as DESI
and Euclid. I will conclude by arguing that in the next couple of years the large-scale
structure will become as powerful probe of cosmology as the CMB, and show the
immense potential that the combination of the two has in answering some of the open
questions in cosmology.