21 Authors on TikTok to Follow for Book Promo Ideas — BookBub 2023-09-14 admin Leave a comment 21 Authors on TikTok to Follow for Book Promo Ideas TikTok can be a great place for authors to both promote their books and build community β the app has 150 million monthly active users in the United States alone, and it boasts a burgeoning community of readers, dubbed BookTok. The BookTok hashtag currently stands at over 175 billion views, with videos featuring books old and new.