This toolkit is designed to support organisations that work directly with adolescent street-connected girls (aged 11 to 18 years old) and want to review and develop their programmes, as well as organisations that want to work directly with adolescent street girls. It is designed to help organisations globally to develop their capacity, programme delivery and monitoring and evaluation so that they can work more effectively with adolescent girls. It can be used to support the delivery of programmes that prevent girls from going onto the street; who spend time on the street; and/or live on the street. It outlines many of the challenges and good practices shared by organisations across the world. However some of these may not be applicable to, or effective for every organisation.