I have no idea when I read Paul Watzlawick’s How Real Is Real? the first time. I was amazed by the theories buried deep within the book and read everything I could. One sentence is still sticking – and seems to be a paradigm of my thinking: One cannot not communicate.
A wonderful video on a variety of things, including learning and teaching to see. Make sure to check out Edward Tufte’s website if you love such things. I learned a lot from his books (and I am still saving to attend a seminar).