Information Modeling and Relational Databases, Second Edition (The Morgan Kaufmann Series in Data Management Systems)
This book is an excellent introduction to both information modeling in ORM and relational databases. The book is very clearly written in a step-by-step manner, and contains an abundance of well-chosen examples illuminating practice and theory in information modeling. I  strongly recommend this book to anyone interested in conceptual modeling and databases.Dr. Herman Balsters, Director of the Faculty of Industrial Engineering, University of Groningen, The Netherlands