DATABASE MODELING

Information Modeling and Relational Databases
by Terry Halpin


This is the definitive text on the subject of Object-Role Modeling (ORM) and a book that should be read by every data modeler/database architect. If that isn’t enough praise for you, you can read more in my review.
Data Model Patterns: Conventions of Thought
by David Hay


This is one of the most cited data model patterns books out there... and for good reason. I may not always use the models exactly as they are in the text, but I reference them constantly.
The Data Model Resource Book
by Len Silverston


Another data model pattern book I reference constantly.
Analysis Patterns
by Martin Fowler


"OO Guys" have something to say about data model patterns too. This is the other patterns book I refer to a lot.