A new book has been published at Elgar: https://www.e-elgar.com/shop/gbp/conceptual-re-constructions-of-international-law-9781800372993.html
A book, with a collection of essays on validity and soft law, was published at Springer: https://link.springer.com/book/10.1007/978-3-319-77522-7
My monograph `Outsourcing the Law: a Philosophical Perspective on Regulation' is published at Edgar Elgar Publishers. More information at: https://www.e-elgar.com/shop/outsourcing-the-law.