How to Speak and Write Correctly

"How to Speak and Write Correctly" by Joseph Devlin is a helpful manual about good communication, likely from the early 1900s. It wants to give regular people the basic skills to speak and write well in English, focusing on being clear and simple. The book starts by explaining that it's for people who don't have time for complicated books about grammar. Devlin points out that knowing around 2,000 common words is enough to communicate well, even though English has way more words than that. He talks about how it's better to use easy, well-known words instead of fancy ones that can make it harder to understand each other. The author presents his book as an easy-to-use guide that helps people speak and write correctly and with confidence