Thank you for your post.
I was hoping by now other users would have responded to this post. There are several third-party books available, and all of them have their strong points and weak points.
You may want to look at the FileMaker Training Series courses. Please see the following link for more information:
If you have any questions, please let me know.
I bought the Filemaker training book and cd and found it to be helpful. It was way over my head at first but now after having done a pretty complex database, I find it easier and use it constantly as a reference. The examples in the cd were especially helpful but I wish they were explained better. It would be nice to find a book that takes you through the process of developing one database from start to finish.