The Longarm books are a series of western

American Old West

The American Old West, or the Wild West, comprises the history, geography, people, lore, and cultural expression of life in the Western United States, most often referring to the latter half of the 19th century, between the American Civil War and the end of the century...

 novels featuring the character of Custis Long, who is nicknamed Longarm, a U.S. Deputy Marshal

United States Marshals Service

The United States Marshals Service is a United States federal law enforcement agency within the United States Department of Justice . The office of U.S. Marshal is the oldest federal law enforcement office in the United States; it was created by the Judiciary Act of 1789...

 based in Denver, Colorado

Denver, Colorado

The City and County of Denver is the capital and the most populous city of the U.S. state of Colorado. Denver is a consolidated city-county, located in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains...

 in the 1880s. The series is written by "Tabor Evans", a house pseudonym

Pseudonym

A pseudonym is a name that a person assumes for a particular purpose and that differs from his or her original orthonym...

 used by a number of authors. Lou Cameron

Lou Cameron

Lou Cameron is an American novelist and a comic book creator.Born in San Francisco in 1924 to Lou Cameron Sr. and Ruth Marvin Cameron, a vaudeville comedian and his vocalist wife.Lou Cameron served in Europe during World War 2 in the U.S...

 helped create the character and wrote a number of the early books in the series. The first book was published in 1978 and new ones are still being added at a rate of approximately one a month, totalling over 300 books in the series.

The Longarm series is a mainstay of the "adult western" genre which arose in the 1970s. These books are distinguished from classical westerns by the inclusion of more explicit sex

Sex

In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into a male or female variety . Sexual reproduction involves combining specialized cells to form offspring that inherit traits from both parents...

 and violence

Violence

Violence is the use of physical force to apply a state to others contrary to their wishes. violence, while often a stand-alone issue, is often the culmination of other kinds of conflict, e.g...

. In addition to Cameron, other authors known to have written books in the series include Melvin Marshall, Will C. Knott, Frank Roderus, Chet Cunningham, J. Lee Butts, Gary McCarthy, James Reasoner

James Reasoner

American author James Reasoner specializes in historical military novels, westerns, and mysteries. He also writes under the pseudonyms "Mike Jameson" and "Dana Fuller Ross." He has written more than 40 novels. His spouse, Livia Washburn Reasoner, is also a prolific writer of westerns, mysteries,...

, and Peter Brandvold

Peter Brandvold

Peter Brandvold is an American western fiction author, who has written more than thirty published novels.Born and raised in North Dakota, Peter Brandvold spent much of his early life riding horses, reading western novels, and watching western movies....

.