This handbook is a resource and guide for project managers, developers, implementers, evaluators and donors working in the field of counter-trafficking, who want to develop performance indicators for their counter-trafficking projects. It is not intended to be a comprehensive set of guidelines for project development. It is meant to be used by any organization or donor to help define and incorporate indicators that measure project performance within the framework of prevention, protection and prosecution.More information about human trafficking on the website of IOM.