Acknowledgments This book would not have been pos si ble without the great dedication of each and every contributor. I would like to extend my profound gratitude for their expertise, commitment, and inspiring discussions. I owe a special debt to my colleagues at Bloomsburg University for their strong support. My children, Cong, Jon, and Jan- ice, have been patient reviewers of my writings I owe them many thanks. Finally, I express my special appreciation to Ms. Kaitlin Ciarmiello, Senior Acquisition Edi- tor, and Mr. John Wagner, Senior Development Editor, of ABC-CLIO, for their guidance throughout the publication process.