When severe reading and spelling problems are not detected at an early stage in the school context, students may not be able to overcome them even in adulthood. Such problems in the worst cases may lead to developmental dyslexia or developmental dysorthographia, which are severe learning disabilities. Early intervention, though, can prevent these problems. Consequently, involving students in an active writing programme and providing them with ample opportunities to use spelling words in frequent writing can be the answer to such an inquiry. Meaningful writing can further facilitate spelling acquisition since in this manner, they can gain control over their work and learn to focus on the writing process and not exclusively on the final product. The book addresses these issues in order to help educators and clinicians identify such problems early, while it also acts as a practical guide to instruction and assessment.