Ellery Queen's Mystery Magazine Magazine" has several distinguishing hallmarks, most of which were established during the days of Frederic Dannay’s editorship and have been maintained and strengthened since then. It is believed that these characteristics have helped" EQMM "to survive and flourish for more than 75 years while retaining its reputation as the leading periodical in the genre. From the creation of "EQMM", Dannay was determined to make the magazine “a quality publication devoted exclusively to the printing of the best detective-crime short-story literature," making quality the sole criterion for inclusion in the magazine, and his principle is inherited by succeeded editors. Apart from
Pen name sometimes choose to use initials, such as K. A. Applegate, C. J. Cherryh, P. N. Elrod, D. C. Fontana, S. E. Hinton, G. A. Riplinger, J. D. Robb, and J. K. Rowling. Alternatively, they may use a unisex pen name, such as Robin Hobb (the second pen name of novelist Margaret Astrid Lindholm Ogden). A collective name, also known as a house name, is sometimes used with series fiction published under one pen name even though more than one author may have contributed to the series. In some cases the first books in the series were written by one writer,