This book is an A-to-Z guide to English grammar, designed to help learners, especially those whose home language is not English, achieve proficiency.By presenting grammatical concepts in a variety of real-world contexts, this book not only enhances language skills but also encourages self-reflection and personal growth. Each lesson equips learners with fundamental skills, including speaking, writing, listening, reading, and reasoning.Mastering English will be an essential key to unlocking opportunities in various lucrative professions worldwide.