  Much recent attention has focused on theories with large extra compactified
dimensions. However, while the phenomenological implications of the volume
moduli associated with such compactifications are well understood, relatively
little attention has been devoted to the shape moduli. In this talk, I
demonstrate that non-trivial shape moduli can lead to a number of effects which
are relevant not only for experimental searches for extra dimensions, but also
for the interpretation of experimental data if such extra dimensions are found.
This talk reports on work done partly in collaboration with Arash Mafi.
