Book excerpt: Although as many as 10-20% of students are affected by dyslexia, most teachers still receive very little (if any) training about this disorder. Much misinformation about dyslexia exists as well; and until very recently, even the term "dyslexia" was not being used in schools. Fortunately, this is changing. Today, there are a variety of evidence-based tools and programs that schools can use to catch dyslexia early, develop effective interventions, and help students with dyslexia thrive in school and beyond. This guide reviews the screening-assessment-intervention process and recommends proven tools and resources for each stage.