The Day the Letters Flew The Day the Letters Flew is a book designed for children needing extra language support. This fun books tells the story of a young boy who wakes up one morning to discover that letters have gotten into his happy home and turned everything upside down. The letters change one word into another all day long and give the boy a great adventure. It is recommended for children diagnosed with or at risk of dyslexia, Specific Language Impairment or language difficulties related to other developmental difficulties such as autism. This book is also useful for children who are learning English as a second language.