Here is a link to the IDA Dyslexia Handbook: What Every Family Should Know. This handbook not only contains invaluable information like the characteristics of dyslexia, what it is and what it isn't, but also provides information on valid assessments, effective teaching approaches, self-advocacy ideas and a vast array of resources. Further, the handbook contains information that will be useful throughout a child's life, from elementary school through college.
The degree of difficulty a child with dyslexia has with reading, spelling, and/or speaking varies from person to person due to inherited differences in brain development, as well as the type of teaching the child receives. The brain is normal, often very "intelligent," but with strengths in areas other than the language area. This "difference" goes undetected until a child finds difficulty when learning to read and write.
The Office of Special Education Programs recommend this 2-hour training video for our staff.