All entries list English as the language and indicate a suggested age of 22 years and up.
Listings use several approaches: literary criticism, biography/autobiography centered on outlaws, and historical narrative focused on the Old West and 19th‑century events.
They cover literary criticism (American literature), biography/autobiography focused on criminals and outlaws, and history (United States, theme: 19th century).
Most focus on the American Old West and late 19th‑century outlaws (for example, Butch Cassidy and the Dalton Gang). One result is a close literary study of a Pulitzer Prize–winning novelist’s later work.
The search results include authors such as Peter Josyph, Thom Hatch, and Tom Clavin.
Product details emphasize substantial research: one calls itself "the most extensive examination to date," another says it "draws on a wealth of fresh research," and a third references "drawing from an impressive number of sources."
