2Autism was first described by Kanner in 1943 (Aarons & Gittens, 1992). Frith (1991) highlighted the work of Hans Asperger, who described a similar disorder, but with differing levels of impairment. The difficulties he described later became known as Asperger’s Syndrome. Over the years, interest in these disorders has varied, with a recent resurgence of interest in what is now commonly referred to as Autism Spectrum Disorder (ASD). This describes a spectrum of difficulties with shared core deficits that may present in a variety of ways.