Delia Owens’s novel was the top-selling print book in the first half of 2019 at outlets that report to NPD BookScan. The novel, published in August 2018, sold more than 907,000 copies in 2019 and upwards of 1.1 million copies since its release.
— Read on www.publishersweekly.com/pw/by-topic/industry-news/publisher-news/article/80621-where-the-crawdads-sing-top-seller-so-far-in-2019.html