Lithium evolution in the Milky Way discs: the view using large stellar
  samples
  This contribution presents an overview of the evolution of Li abundances in
stars of the Galactic thin and thick discs, from the observational point of
view. The focus is on Li abundances obtained by recent projects and surveys. To
separate thin and thick disc stars, both chemical abundances, kinematics, and
ages can be used. For thick disc stars, the Li evolution is uncertain, as
differences appear depending on how the stars were separated. Nevertheless, it
seems clear that most of the Galactic enrichment in Li takes place in the thin
disc. Literature consensus also seems to exist regarding the decrease in the Li
abundances of stars with metallicity above solar. A brief discussion is
included on some of the uncertainties that should be kept in mind when trying
to understand the Li observations. This review ends listing two interesting
open questions regarding Li abundances in Milky Way disc stars.
