This book links research to clinical practice with studies of parents' perceptions of their involvement in their child's intervention, and their relationship with the SLP being used to inform clinicians of the most effective ways of interacting with and involving parents in SLP intervention. A series of chapters covering the evidence base of effectiveness of parent and family involvement in different areas of SLP clinical practice also inform readers of what methods of parental involvement have been proven to increase child and family outcomes. Sections on practical tips for involving families and individual case studies facilitate the readers' knowledge of how to use family-friendly principles in practice.