Description:The Grammar Cracker «cracks open» the door to the world of English-learning by presenting the English grammar rules and practices in a very clear manner. Its format is logical: it is organized in order of increasing size and scope, from letters to words to sentences to paragraphs to essays, reports, books, etc.All of the important grammar principles are covered, including word origins, parts of speech, sentence structure, punctuation and writing styles. In addition, hundreds of examples and exercises are given to reinforce learning. All levels of students will benefit from the Grammar Cracker: beginners will learn to form words and sentences more advanced students can use this product in review.