- Buzan, Barry & Richard Little (2000) International Systems in World History: Remaking the Study of International Relations (Oxford: Oxford University Press). (452 p)
- Halperin, Sandra & Oliver Heath (2020 or Latest). Political Research. Methods and Practical Skills (Third or Latest edition) (Oxford: Oxford University Press). (480 p/445 p)
- Hill, Christopher, Smith, Michael & Vanhoonacker, Sophie (2017 or Latest) International Relations and the European Union (Third or Latest edition) (Oxford: Oxford University Press).
- Söderbaum, Fredrik (2015) Rethinking Regionalism (Rethinking World Politics) (Basingstoke: Palgrave). (272p)
Additional material, mainly in the form of journal articles, may be added to the reading list.