In a world that is increasingly driven by words and text, knowing how to use grammar to communicate correctly is a key skill in school, business, and relationships. Thorough and concise, Grammar Success in 20 Minutes a Day covers all the essentials, including common and proper nouns; personal, reflexive, and demonstrative pronouns; regular and irregular verbs; adjectives, adverbs, misplaced modifiers, prepositions, subordinate and insubordinate clauses; compound sentences; and punctuation. Grammar Success in 20 Minutes a Day includes: *A pretest that pinpoints strengths and weaknesses so students know where to focus their time*Hundreds of practice questions covering all vital grammar skills, from dealing with noun and verb agreement to knowing when to use a comma, colon, or semicolon* A post-test that shows students' progress