As of March 2015, there are eight novels in Diana Gabaldon's "Outlander" series. Gabaldon published the first book in the series, "Outlander," in 1991. "Dragonfly in Amber" followed in 1992.
The third book in the "Outlander" series is "Voyager." "Drums of Autumn" is the fourth book, and "The Fiery Cross" came next.
The sixth book in the series is "A Breath of Snow and Ashes," and Gabaldon wrote "An Echo in the Bone" as the seventh, or second to last, book. The final novel in the "Outlander" series is "Written in My Own Heart's Blood."
The series also includes one short story and two novellas. A graphic novel, "The Exile," and two companion readers are available to assist viewers of the "Outlander" TV show.