The document provides an introduction to the Capability Approach developed by Amartya Sen and Martha Nussbaum. It discusses key concepts such as functionings and capabilities, and distinguishes between well-being and agency. The Capability Approach focuses on what people are effectively able to do and be, on their real opportunities and freedoms. It can be used as an evaluative framework for development policies and social arrangements. While primarily a framework, it also critiques other approaches such as those focused on income, resources, or utility. The document outlines the core concepts and debates within the Capability Approach.