Although dyslexia is defined as a specific reading disorder, we also know that affected individuals can often show a host of other difficulties in language processing and attention. In this talk I will discuss recent work in my lab examining overlap in the incidence of dyslexia with developmental language disability (DLD) and ADHD. Of particular interest is how children with these comorbid disorders differ from so-called ‘pure’ cases, and whether this can tell us anything about their underlying causes.