Nova Populations
  In this article we review the current status of the stellar population assignment for novae. Observations in the Milky Way and in external galaxies point out the existence of two nova populations: fast and bright novae, mainly originated from massive white dwarfs and associated with the `thin disk/spiral arm' stellar population, and slow and faint novae, originated from lighter white dwarfs and associated with `thick-disk/bulge' population. 
Massimo Della Valle (Firenze)