  There has recently been an intense activity in the study of finite volume
effects by means of chiral perturbation theory. In this contribution I review
recent work in this field both for the epsilon-- (Mpi L \lesssim 1) and the
p--regime (Mpi L \gg 1). For the latter I emphasize the importance of going
beyond leading order calculations in chiral perturbation theory and the
usefulness of asymptotic formulae a la L"uscher used in combination with CHPT.
