Emmorey, Giezen and Gollan (Emmorey, Giezen & Gollan) address the fascinating question of what can be learnt about language, cognition and the brain from the unique group of people who have grown up learning both a signed and a spoken language. The focus of their review is hearing individuals – referred to as hearing bimodal bilinguals. The review presents an excellent overview of research in this field and highlights the unique insights that this population can provide.