In accomplishing this book we owe a debt of gratitude to a great many people too numerous to mention by name However there are some fi gures whose encouragement support and assistance have been invaluable and are worthy of note First of all we are iIn accomplishing this book we owe a debt of gratitude to a great many people too numerous to mention by name. However, there are some fi gures whose encouragement, support, and assistance have been invaluable and are worthy of note. First of all, we are i