 He was unafraid to introduce mathematics wherever it was essential, but he tried to avoid deterring potential readers by including large numbers of equations that did not illustrate essential points.In 1956, he was awarded the Kalinga Prize by UNESCO for his work in popularizing science with his "Mr. Tompkins..." series of books (1939–1967), his book "One, Two, Three...Infinity", and other works.Before his death, Gamow was working with Richard Blade on a textbook "Basic Theories in Modern Physics", but the work was never completed or published under that title.