content: I am an Electrical Engineer and had the usual education. It is a delight to read this book and learn about the fundamental theory upon which much of the Electrical Engineering profession is based.Much of what we are taught in schools is an approximation and sometimes wrong. It is great to learn, even if it is only qualitatively, about more accurate representations.I wish that Feynman were alive to keep updating his lectures with the latest developments. The lectures seem to have been last updated in 1980s and I am sure Physics has moved on since then.