These scandalous phrases of Feynman inspired two authors - Michael Gottlied and Ralph Leighton - to seek recordings and photographs of the four lost lectures in order to reconstruct them.

These efforts were supported by many of Feynman's collaborators, and the final result was a new book titled "Feynman's Tips on Physics," a delightful collection of insights that have emerged from Feynman's intuition and serves as an essential aid to the now legendary physics lectures.

Using his brilliant talent, insight, and humor, Feynman discusses topics that challenge students and offers valuable tips regarding the solving of physics problems.

In addition, a chronicle by Matthew Sands describes firsthand the origin of Feynman's monumental lectures. These insights are complemented with a set of "sharp" and enlightening exercises from R. B. Leighton and R. E. Vogt that were initially created as a supplement to the "Feynman Lectures on Physics."