In this week’s Books podcast, I am joined by the writer Daniel Tammet, whose new book Nine Minds: Inner Lives on the Spectrum is a pen portrait of nine lives of people on the autism spectrum. On the podcast, he tells me how he happened upon these nine lives, whether ‘spectrum’ is a helpful term when understanding autism and Asperger’s syndrome, and how popular culture’s most famous depiction of autism – Dustin Hoffman’s Rain Man – is based on an individual who wasn’t autistic at all.