Lexis Nexis Butterworths (LNB) includes primary and secondary legal materials from the UK, EU, USA and many other jurisdictions.

It has particularly good collections of UK cases and in particular includes The Law Reports and The All England Law Reports, as well as many specialist series of reports. It is also a good source of UK legislation as it includes all UK Acts and Statutory Instruments as they currently stand.

LNB is also an excellent source of US primary legal materials and includes a huge amount of legal commentary from the UK and the US.

Lexis content formerly provided via the Lexis Nexis Professional interface is now available via LNB which replaces Professional.

Decisions from a number of international courts and tribunals including the International Court of Justice and Permanent Court of International Justice, International Criminal Court, International Criminal Tribunal for the Former Yugoslavia, International Criminal Tribunal for Rwanda, Nuremberg International Military Tribunal, the Special Court for Sierra Leone, the UN Committee on the Elimination of Racial Discrimination, the UN Committee against Torture, the UN Human Rights Committee, European Court of Human Rights and the African Commission on Human and Peoples' Rights. In addition the "International Law in Domestic Courts" section includes decisions from domestic courts relating to international law from 60 jurisdictions.

The Max Planck Encyclopedias of International Law combines the fully updated online edition of the Encyclopedia of Public International Law (MPEPIL) (originally published in print between 1991 and 2001) with the Max Planck Encyclopedia of International Procedural Law (MPEiPro) which has been published (online only) since September 2019. The peer-reviewed articles in both works are updated and added to monthly.