Fleming's second non-fiction book was published in November 1963: "Thrilling Cities", a reprint of a series of "Sunday Times" articles based on Fleming's impressions of world cities in trips taken during 1959 and 1960. Approached in 1964 by producer Norman Felton to write a spy series for television, Fleming provided several ideas, including the names of characters Napoleon Solo and April Dancer, for the series "The Man from U.N.C.L.E." However, Fleming withdrew from the project following a request from Eon Productions, who were keen to avoid any legal problems that might occur if the project overlapped with the Bond films.