One of the older continually printed genealogical publications in the world. (See the note below.) Everton's Genealogical Helper has been in print since 1947 although ownership has changed a few times in recent years. A time honored tool for every genealogist's tool box.
Read more at the Everton Publisher's site.
NOTE: The above statement of "One of the older continually printed genealogical publications..." probably refers to commercial publications. There are many genealogical publications produced by non-profit organizations that are much older. For instance, The New England Historical and Genealogical Register has been published continuously since 1847, the New York Genealogical and Biographical Record has been published continuously since 1870, the National Genealogical Society Quarterly has been published continuously since 1912, etc.