The aim of the present essay is to present a literature review on the contribution of morphological awareness to reading and spelling ability of typically developing children and children with dyslexia. Inflectional morphological awareness is acquired early on children’s oral language. During course of written language acquisition morphological awareness contributes to reading and spelling ability of normally developing children in combination to phonological awareness. Several issues such as course of acquisition of inflection and derivational morphology in oral and written language are well documented in English language and presented in this paper.