Special Issue: Conceptualising the Production and Diffusion of Useful and Reliable Knowledge in Early Modern Europe \ Introduction - Useful Knowledge Reconsidered, Karel Davids (Amsterdam) \ 1. Trading Zones: Arenas of Exchange during the Late-Medieval/Early Modern Transition to the New Empirical Sciences, Pamela Long (Independent Scholar) \ 2. Gate-Keeping: Who defined useful knowledge in Early Modern times?, Karel Davids (Amsterdam) \ 3. The Circulation of Knowledge in Early Modern Europe: Embodiment, mobility, learning and knowing, Lissa Roberts (Twente) \ 4. Three-Dimensional Models as 'In-Between-Objects': The creation of in-between knowledge in early modern architectural practice, Simona Valerian (LSE) \ 5. Artisans, Operative Skills and Labour Rationalities at the Beginning of the Industrial Revolution, Lilian Perez (University Paris-Diderot) \ Special Issue: Patent Agency in History: Intellectual Property and Technological Change \ Introduction - Patent Agency: Problems and perspectives, Ian Inkster (Wenzao College, Kaohsiung and Nottingham Trent University) \ 6. Patent Agents in the European Periphery: Spain (1826-1902), David Pretel (University of Cambridge) and Patricio Saiz (UAM) \ 7. The Litigations Concerning Renault's Patents at the Beginning of the 20th Century, Gabriel Galvez-Behar (Université Lille 3) \ 8. Highly Fraught with Good to Man: Patent Organisation, Agency, and Useful and Reliable Knowledge in British Machinofacture circa 1780-1851 and Beyond, Ian Inkster (Wenzao College, Kaohsiung and Nottingham Trent University) \ 9. Patent Agents in Britain at the Turn of the 20th Century: Themes and Perspectives, Anna Guagnini (Bologna) \ 10. The Oldest Patent Granted in Mexico and Latin America, Dr. Manuel Márquez (L.L.& M.M. Consultores, SC)