Book excerpt: At The National Autistic Society we are often asked about how best to talk to someone about their autism diagnosis. We feel that a person with autism has the right to know their diagnosis. Wanting to protect someone from their diagnosis can feel like the kindest thing to do, but in reality it often gets harder the longer it is delayed. There are definite advantages to talking about the diagnosis, but these vary between individuals. Many people have commented that they would like to have known earlier because knowing their diagnosis came as a relief and a source of comfort. This book offers a wealth of advice and guidance. Aimed primarily at parents and carers of younger children, it includes helpful information also for schools and for people working with adults with autism.