Meet Colleen Hoover, the controversial author of 'It Ends With Us' taking BookTok by storm

Colleen Hoover attends the New York premiere of "It Ends With Us."John Nacion/Variety via Getty Images

• Colleen Hoover is the bestselling author of over 20 books, including "It Ends With Us."
• The film version of "It Ends With Us," starring Blake Lively, premieres Friday.

If you've been in a bookstore recently, you've likely seen one of Colleen Hoover's books.

Hoover is the prolific and widely loved author of over 20 books. According to Quartz, her total sales are estimated to be as high as 30 million copies sold.

Hoover's catalog includes "It Ends With Us," which has been adapted into a film starring Blake Lively and Justin Baldoni.

The film premieres on Friday, and before its release, Business Insider looked back at Hoover's career.

From self-publishing roots to social media fame, here's everything you need to know about Hoover.