  We study the exclusive production of pi pi and rho pi in hard gamma* gamma
scattering in the forward kinematical region where the virtuality of one photon
provides us with a hard scale in the process. The newly introduced concept of
Transition Distribution Amplitudes (TDA) is used to perform a QCD calculation
of these reactions thanks to two simple models for TDAs. Cross sections for rho
pi and pi pi production are evaluated and compared to the possible background
from the Bremsstrahlung process. This picture may be tested at intense
electron-positron colliders such as CLEO and B factories. The cross section e
gamma -> e' pi0 pi0 is finally shown to provide a possible determination of the
pi0 axial form factor, FA, at small t, which seems not to be measurable
elsewhere.
