Introduction / Lauren Neumann and Katerina Mitkidis -- Five theses on the dialectic of unity and plurality in postnational law / Kaarlo Tuori -- The politics of transnational law / Thomas Gammeltoft-Hansen and Tanja Aalberts -- Transnationalism in the Arctic ocean : legitimacy strategies of the Inuit Circumpolar Council, the European Union and China / Cécile Pelaudeix -- Transnational ecosystem-based norms covering the Danish/Greenlandic Arctic marine area / Ellen Margrethe Basse -- Brexit : a note on the EU's interlegality / Reza Banakar -- Beyond nations and continents? : harmony and solidarity as common endeavours in a digital era of populism, propaganda and fiction? / Hanne Petersen -- Development of transnational contract law? / Katerina Mitkidis -- Towards the participation of a global public in transnational law-making? : everyday ICT platforms as legitimacy opportunities for bottom-up governance / Karin Buhmann and Sameer Azizi -- Pushing back international human rights law : counter reaction to transnational law? / Jens Vedsted-Hansen -- Balancing legal obligations in Europe' cooperation with Libya in the fight against migrant smuggling / Fenella M.W. Billing and Nikolas Feith Tan -- Enforcing transnational labour law in local contexts / Louise Munkholm -- The principle of equality as a transnational principle / Natalie Videbæk Munkholm and Christian Højer Schjøler -- How domestic courts may shape international commercial law norms / Thomas Neumann -- Transnational religious law : exemplified by the United Methodist church / Lisbet Christoffersen -- Is formality legitimacy? : defining the obligations of non-state armed groups / Lauren Neumann -- Transnationalisation and legal actors : legitimacy in question / Louise Munkholm, Cécile Pelaudeix and Bettina Lemann Kristiansen.