1 The Rationality and Justification of Legislation: A Preface; A. Daniel Oliver-Lalana and Luc J. Wintgens.- 2 The Rational Legislator Revisited. Bounded Rationality and Legisprudence; Luc J. Wintgens.- 3 The Principled Legislative Strategy: Rationality of Legal Principles in the Creation of Law?; Hannele Isola-Miettinen.- 4 Three Grounds for Tests of the Justifiability of Legislative Action: Free-dom, Representative Democracy, and Rule of Law; Andrej Kristan.- 5 Legisprudence in the Korean Context: A Practical Approach Focusing on the Confucian Effects on Rationality; Cheoljoon Chang.- 6 The Role of Constitutionalism in Regulatory Governance; Pablo Larra?aga.- 7 Legislation as Implementation of Constitutional Law: A Foundation for the Demand of Legislative Rationality; Jan Sieckmann.- 8 Disagreement and Proceduralism in the Perspective of Legisprudence; Woomin Shim.- 9 Rational Lawmaking and Legislative Reasoning in Parliamentary De-bates; A. Daniel Oliver-Lalana.- About the Authors.