This guide have been developed to support researchers to include young children in research. It does this by providing a six-step process for designing research and through systematically identifying and describing a range of methods that have been used with young children in diverse contexts around the world. For each of the steps guidance is given about what the researcher might include in their research when considering each step. For each cluster of methods an overview is provided to show the range of the types of methods that could be applied with young children, key strengths and weaknesses of these methods and a consideration of the potential contextual, ethical and capacity issues which may arise through the use of such methods.