This is a book summary for the master copy "How to Speak and Write Correctly" by Joseph Devlin and Vivian W. Lee (2015). This complementary study guide is translated into 16+ written languages. Each study guide has a 3-page colored infographic, English book summary by chapter, a 5-week learning schedule, two mini quizzes, and many FREE e-Articles on self-help business writing tips online. When you can communicate clearly and concisely in English speaking and writing, you gain valuable lifelong skills to resolve social conflicts, conquer business challenges, and overcome cultural barriers. Buy this study guide with the master copy (in softcover or hardcover) today to quickly improve your English communication skills within FIVE weeks.