Speaker: Claudio Bonanno (IFIC)

I will review the current state of affairs concerning non-perturbative QCD inputs for axion phenomenology. I will provide a systematic survey of existing lattice QCD results, and I will outline how they compare with up-to-date predictions coming from chiral effective theories and semiclassics. I will conclude delineating the future challenges that await this field in the near future, and what are the current perspectives to meet them.