"Plain Words from America: A Letter to a German Professor" (1917) is the work of the famous American writer Douglas Wilson Johnson, which is characterized by a unique combination of analysis and philosophical reflections. In this book, the author, using simple and transparent words, will try to convey his thoughts to the German professor. The book, published in 1917, reveals the relations between peoples at the time of world competitions and provocations. This is an interesting monument of history and cultural exchanges, which remains relevant even today.