I find that to be true, also. Ellery Queen was a very popular mystery detective book series for decades. The character had a long run on radio, several bad 1940s movies, and then TV for most of the 1950s. Ellery Queen's Mystery Magazine has been in continuous print since the mid-1940s. But as time has moved on, the importance of Ellery Queen in detective fiction, once great, has waned and the character mostly forgotten, which is a shame. However, he is very popular in Japan.