  Embedded Lagrangian cobordisms between Legendrian submanifolds are produced
from isotopy, spinning, and handle attachment constructions that employ the
technique of generating families. Moreover, any Legendrian with a generating
family has an immersed Lagrangian filling with a compatible generating family.
These constructions are applied in several directions, in particular to a
non-classical geography question: any graded group satisfying a duality
condition can be realized as the generating family homology of a connected
Legendrian submanifold in R^{2n+1} or in the 1-jet space of any compact
n-manifold with n at least 2.
