  Recent progress on the structure and dynamics of bulges is reviewed. Those
aspects that link galaxy bulges either to oblate spheroids akin to elliptical
galaxies or to rapidly-rotating, flattened systems more nearly resembling the
products of disk internal transformations, are highlighted. The analysis of
surface brightness profiles derived from HST data is reviewed to show that
unresolved nuclear components detected by HST have biased the determination of
surface brightness profiles obtained from the ground; r^1/4 profiles are
virtually nonexistent in galaxy bulges. Predictions from accretion N-body
models on the shape of surface brightness profiles are discussed. The position
of bulges on the Fundamental Plane of elliptical galaxies is examined to infer
clues on bulge population ages and bulge dynamical structure. Kinematic
diagnostics on the internal dynamics of bulges are examined. Finally, a new
approach to the kinematic analysis of galaxies, based on the use of synthetic
spectra of single stellar population models instead of the standard stellar
templates, is presented.
