The Best Improve English Vocabulary - January 2023
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Creative Teaching Press

Your partner in the classroom because 1965.
Norman Lewis

Norman Lewis (born December 30, 1912 in Brooklyn, New York – died September 8, 2006 at Whittier, California) was an author, grammarian, lexicographer, and etymologist. Lewis was a major authority on English-language abilities, whose best-selling 30 Days to a More Powerful Vocabulary published by Pocket Books at 1971 guaranteed to educate readers "how to make words your officers" in fifteen minutes per day.
Bio from Wikipedia, the free encyclopedia.