What's in This Book
Because much of the material in this book is drawn from question-and-answer discussions and consultations, we have tried to make it as complete as possible. Of course, this means that we have included "recipes" for some questions to which there are currently no satisfactory answers (or at least to our knowledge). This has not been done to tease, annoy, or frustrate you; such recipes are included to provide completeness, so that you will know those problems have been considered rather than ignored.
Very few problems remain insoluble forever, and these incomplete recipes are the ones that will receive immediate attention on the book's web site and in revisions of the book. If a reader has figured out a way to do something the book mentions but doesn't explain, or omits mentioning entirely, our research team can be notified, and that solution will go on the web site and in the next revision.
Who knows, you may be the one to provide such a solution!