Parliamentary diplomacy has provided a crucial, promising outlet in Taiwan's challenging pursuit of its own interests in the international arena. This book assesses both the potentials and the constraints of parliamentary diplomacy for Taiwan. Through a comparative perspective, and using evidence from the relations of the Legislative Yuan in Taiwan with the US Congress and the European Parliament, the authors investigate the implementation of parliamentary diplomacy in Taiwan and its impact in Taiwan's foreign policy. In their analysis, the authors draw vital lessons that will have important implications for other entities which have similar challenges and aspirations.