Foundations of a Free Society outlines the core principles that define a free society and provides an accessible introduction to the institutions and policies necessary to preserve and enhance individual freedom.
Simply written and with real-world examples, this book is essential reading for anyone wanting to bring freedom to countries where it currently does not exist and for those defending liberty in places where traditional freedoms are under threat.
It is downloadable for free and you only need to ask the Institute of Economic Affairs for permission to translate it.
https://www.iea.org.uk/publications/research/foundations-of-a-free-society