Acknowledgements Notes on Contributors How (Un)fair is Intellectual Property?; A.Gosseries Lockean Justifications of Intellectual Property; D.Attas Are Rawlsians Entitled to Monopoly Rights?; S.Dumitru Access to vs. Exclusion from Knowledge: Intellectual Property, Efficiency and Social Justice; G.B.Ramello The Incentives Argument for Intellectual Property Protection; S.V.Shiffrin When Property is Something Else: Understanding Intellectual Property Through the Lens of Regulatory Justice; S.Ghosh Liberty and the Rejection of Strong Intellectual Property Rights; J.Trerise Is P2P Sharing of MP3 Files an Objectionable Form of Free-riding?; G.Demuijnck Copyright and Freedom of Expression: A Philosophical Map; A.Couto Free Software, Proprietary Software and Linguistic Justice; G.Falquet & F.Grin How Efficient is the Patent System? A General Appraisal and an Application to the Pharmaceutical Sector; P.Belleflamme Patents on Drugs – The Wrong Prescription?; P.Dietsch Is It Ethical To Patent Human Genes?; A.Lever Index