As part of its Health Systems in Transition (HiT) series the European Observatory on Health Systems and Policies systematically describes the functioning of health systems in countries as well as reform and policy initiatives in progress or under development.

The HiT health system reviews cover the countries of the WHO European Region as well as some additional OECD countries. They are updated on a regular basis. Next to the English version some reports are also available in another official language, mainly Russian.