Data Modeling and Database Design

Data Modeling for Information Professionals by Bob Schmidt (ISBN: 0-13-080450-9). This gets into much more than just data modeling, but the content is great.

The Data Modeling Handbook by Michael Reingruber and William Gregory (ISBN: 0-471-05290-6). This book gets a lot more into the data modeling design process.

Handbook of Relational Database Design by Candace Fleming and Barbara von Halle (ISBN: 0-201-11434-8). This book has full coverage of design methodologies.

The Rational Unified Process, An Introduction , by Philippe Kruchten (ISBN: 0-201-70710-1) or The Unified Modeling Language User Guide by Grady Booch, James Rumbaugh, and Ivar Jacobson (ISBN: 0-201-57168-4). The Rational Unified Process, or RUP, is an end-to-end methodology for software design. It's overkill for most FileMaker projects, but it can be mined for many useful insights that apply to smaller projects.

Extreme Programming Explained , by Kent Beck (ISBN: 0-201-61641-6) and Extreme Programming in Practice , by James Newkirk and Robert C. Martin (ISBN: 0-201-70937-6). Although FileMaker Pro database development isn't completely compatible with Extreme Programming, there are many useful ideas to be had here, especially in the area of estimating time required to complete tasks .

Code Complete , by Steve McConnell (ISBN: 1-5561-5484-4). It's ten years old, but still an extremely solid, fundamental book on good programming practices. It's oriented toward languages like C, but includes plenty of useful information for developers in any language. Anything by McConnell is likely to be very good. You might also try his more recent Rapid Development (ISBN: 1-5561-5900-5) or Professional Software Development (ISBN: 0321193679).

Practical Software Requirements , by Benjamin L. Kovitz (ISBN: 1-884777-59-7). An extremely useful and readable book about developing requirements for software, including plenty of information useful to database developers. Nice discussions of data modeling, among many other topics.