Hocking lives in Austin, Minnesota. Employed as an assisted living worker until 2010, she wrote 17 novels in her spare time.
In April 2010, she began self-publishing them as e-books By March 2011, she had sold over a million copies of nine books and earned two million dollars from sales, something previously unheard of for self-published authors In early 2011, Hocking averaged 9,000 book sales each day.
Hocking's published work, so far entirely self-published, consists of My Blood Approves, a vampire romance series; the Trylle Trilogy, which covers a teenage girl's journey of self-discovery in an urban fantasy setting; and Hollowland, a zombie novel. The New York Times characterized her novels as "part quirky girl-like-Hocking characters, part breakneck pacing, part Hollywood-style action and part bodice-ripping romance they are literature as candy, a mash-up of creativity and commerce."
In March 2011, Hocking signed her first conventional publishing contract for four books, at a price of two million dollars, with St. Martin's Press. It concerns a new young-adult paranormal series to be called "Watersong." All three books in her previously self-published Trylle Trilogy have also been sold to St. Martin's Press, and will be released with them in early 2012 with wider distribution.