I had the good fortune to hear Dr. Arnheim lecturing; his lecture style was simpler, and easier to understand. German does not translate well into English, word for word, one must take the spirit, and distill it. The writing is a bit thick, in this book, which is why there are only 4 stars, not 5. Some books are worth slogging through, however, and this one is. Thick as the language may be, it is still quite seminal. I do wish the author had read and applied lessons from Art of Readable Writing, written by a contemporary, or say Crystal Clear Writing. Then again, Harry Potter books could stand to be better edited, but it doesn't matter, people flock to read the books, because they like what is communicated. Neville Goddard, in The Law & the Promise, noted that part of the role of humans is to create imagery- or intent. This book is more practical than it appears, at first. Aristotle noted that all thought is visual.