This book is about involving people with dementia in the development of design and technology and, as such, it meets one of the needs we all have, which is to be taken seriously and listened to. The editors' ambition is to take up the challenge of sharing expertise in involving people with dementia as users in the design process. Their aim is to increase the understanding of the subjective needs of people with dementia and the way this understanding can promote and improve their involvement in the design process.