Sierra Cartwright (born 12 October 1963) is an International and two-time USA Today Best-Selling contemporary romance writer who has published more than 30 books, including the mass market paperback Donovan Dynasty Series: Bind, Brand, and Boss.

[1] "Sierra wrote her first book at age nine, a fanfic episode of Star Trek when she was fifteen, and she completed her first romance novel at nineteen.

[3] Her second novel in the Mastered series, "On His Terms" was listed by Look Magazine as one of "Fifty Shades of Grey: 5 Books That Put It To Shame.

[9] Sierra is widely known for her Mastered Series (Totally Bound Publishing) where her book, "With This Collar" became an International Best-Seller and spent over a week at No.

[10] Her Bonds series debuted in May 2014 starting with the book "Crave"[11] which won a Golden Flogger Award in BDSM Light.