This book teaches the rules of grammar, syntax, and writing in a clear and systematic way. It also serves a workbook, with plenty of exercises to help students identify and remedy their weak points. In the short term, this book will help middle and high school students perform better on standardized admissions tests, such as the SSAT and SAT. More importantly, it provides a strong foundation that will improve students' communication skills throughout their lives. Book I, "Structure, " covers the different parts of speech and their roles in sentences. Students will learn how to diagram sentences, which will help them avoid common errors such as: writing sentence fragments, confusing the use of "I" and "me", and using adjectives when adverbs are appropriate.