I was fortunate to use these as an undergraduate in
1964 when they first came out. My Physics professor,
Dr Carl Bailey, worked with Feynman on the Manhatten
project and had the forsight to use it in our class.
We were fortunate to have early access to this series
which is just as exciting and informative today as it
was in 1964. I often refer to these classics when
I really want to understand a concept. The index is
excellent! When you really want the "bottom line"
on a physical phenomenon, Feynman's index will lead you
through pages filled with gems of understanding you'll
soon find yourself sharing with your colleagues and
friends. I've read plenty of other Physics Books,
but none that go to the "next level" like
Feynman to relate concepts with examples that are
so fascinating you can't help but understand them
and want to share them with others. Feynman truly
lives on through his books and videos!
Dr. Olaf O. Storaasli, NASA Langley, Hampton, VA