Django-polymorphic simplifies using inherited models in Django projects. When a query is made at the base model, the inherited model classes are returned.

Features:
* Full admin integration.
* ORM integration:
+ Support for ForeignKey, ManyToManyField, OneToOneField descriptors.
+ Support for proxy models.
+ Filtering/ordering of inherited models (ArtProject___artist).
+ Filtering model types: instance_of(...) and not_instance_of(...)
+ Combining querysets of different models (qs3 = qs1 | qs2)
+ Support for custom user-defined managers.
* Uses the minimum amount of queries needed to fetch the inherited models.
* Disabling polymorphic behavior when needed.