What is dyslexia? Dyslexia comes from the Greek language meaning 'difficulty with words'. It's a symptom of a number of different information processing disorders in the brain.Because there are so many different possible underlying problems (many of which have yet to be understood fully) dyslexia is hard to closely define because it affects children in many different ways. However, the basic problem is a difficulty learning to read, spell and write, despite adequate intellect and teaching. Causes of dyslexia Dyslexia is caused by differences in the areas of the brain that deal with language, which aren't yet fully understood. Several areas in the brain interact in a complex way to coordinate the manipulation of words needed for reading, writing and spelling, so the features of any one...