The purpose of this book is to offer medical, health, and social care professionals who work in acute, medical, long-term, or community care settings insights into the impact of dementia on an individual’s communication interactions and how augmentative and alternative communication (AAC) strategies could enhance these interactions. The first half of the text sets the scene for understanding the nature of dementia and its impact particularly on an individual’s social and emotional life and their language and communication; the second half introduces AAC and what it offers as a set of techniques to support and maintain conversational autonomy in those living with dementia.