Writing is the most sophisticated and complex achievement of the language system. In language development writing is often last to be learned. We integrate previous learning including listening, speaking and reading into writing. A reader must be able to keep an idea in mind while formulating an idea into words and sentences. Thy must be able to create the right graphic form for each letter while manipulation a writing instrument. In addition, the writer must also possess visual and motor memory to integrate complex eye-hand relationships. 3 components of writing: written expression, spelling, handwriting. Success of writer depends on quality of writing instruction that person receieves. Many students with ld lack critical writing abilities: They often have errors in spelling, punctuation, capitalization, handwriting and grammar. They often have short, poorly organized, and lack development of ideas. The writing connection in the integrated language system.