Acknowledgments My book benefited greatly from persons who read the whole manuscript. They provided many helpful comments and suggestions. I want to thank: • Walter Vieira from India • Syed Ferhat Anwar from Bangladesh • William Wilkie from Notre Dame • Gary Massel from Glencoe, Illinois • Christian Sarkar from Houston, Texas • David Houle from Sarasota, Florida • Nancy Kotler from Sarasota, Florida • Milton Kotler from Washington, DC