Good grammar is important, whether you want to advance your career, boost your GPA, or increase your SAT or ACT score. Practice is the key to improving your grammar skills, and that's what this workbook is all about. Open it and you'll find hundreds of fun problems to help build your grammar muscles. Just turn to a topic you need help with — from punctuation and pronouns to possessives and parallel structure — and get out your pencil. With just a little practice every day, you'll be speaking correctly, writing confidently, and getting the recognition you deserve at work or at school.