This is the most recent edition of The State of Learning Disabilities: Understanding the 1 in 5, produced by the National Center for Learning Disabilities. Building on NCLD’s 40-year history as the leading authority on learning disabilities, this report uses recently released data for the 2015–2016 school year and other field-leading research to shine a light on the current challenges and opportunities facing the 1 in 5 children who have learning and attention issues such as dyslexia and ADHD.