This book simplifies the study of English grammar through colorful illustrations and diagrams to help learners understand with ease various grammar lessons. It is a recommended resource for self-directed learners, intermediate and advanced learners in English as a Second Language, and even professionals who wish to gain clarity and confidence in communicating in English.  Get a grasp of key lessons through the whole-part-whole approach (also known as Synthesis) of lesson presentation using full-color illustrations and diagrams that show the relationships of grammar concepts with one another.  Gain mastery in grammar through detailed lessons following each illustration or diagram.  Learn and master the three categories of Subject-Verb Agreement Rules (i.e. subjects that require singular verbs, subjects that require plural verbs and tricky complications in subject-verb agreement) and turn from being confused to confident communicators.  Engage in over 50 challenging exercises which include more than 800 test items covering the parts of speech, verbals, phrases, clauses, sentences, verb tenses, subjunctive mood, pronoun-antecedent agreement, subject-verb agreement, sentence errors, tag questions, and mechanics and punctuations.  Ace the 60-item challenge on identifying errors in sentences designed for advanced learners. Compared to other reference books that are normally textual, this book presents a unique approach that will boost the interest of all types of learners who find the study of grammar both tedious and boring.