Lev Landau
In 1933, Podolsky and Lev Landau had the idea to write a textbook on electromagnetism beginning with special relativity and emphasizing theoretical postulates rather than experimental laws. This project did not come to fruition due to Podolsky's return to the United States, where he had immigrated in 1913. However, in the hands of Lev Landau and E. Lifshitz, the outline they produced became "The Classical Theory of Fields" (1951). On the same basis, Podolsky and K. Kunz produced "Fundamentals of Electrodynamics", Marcel Dekker Press (1969), to which Podolsky's son, Robert, contributed most of the questions at the end of each chapter.