Unit sales of print books fell 5.2% in the week ended Sept. 4, 2021, from the comparable week in 2020, at outlets that report to NPD BookScan. Adult fiction was the only category to see an increase over the week ended Sept. 5, 2020, with sales rising 11.2%. It Ends with Us by Colleen Hoover had another solid week, selling more than 25,000 copies and landing in first place on the category bestseller list. A new book by Paula Hawkins, A Slow Fire Burning, was second on the list, selling just over 22,000 copies. Juvenile fiction unit sales declined 10.2%; a year ago, Dav Pilkey’s Grime and Punishment (Dog Man #9) sold almost 240,000 copies in its first week, while another new release, Gale Gilligan’s Logan Likes Mary Anne!, sold more than 32,000 copies. In the most recent week, Alice Schertle’s Little Blue Truck’s Halloween was #1, selling more than 15,000 copies. Sales in YA fiction fell 2.2% in the week compared to a year ago, when Stephenie Meyer’s Midnight Sun sold about 45,000 copies. In the most recent week, Adam Silvera’s They Both Die at the End stayed #1 in the category, selling nearly 13,000 copies. Despite two new books landing in second and third place on the adult nonfiction bestseller list, sales in the category fell 4.9%. Last year, Stephanie Winston Wolkoff’s Melanie and Me sold more than 50,000 copies in its first week. In the most recent week, Kim Laidlaw’s The Nightmare Before Christmas was #2, selling more than 17,000 copies, and Craig Whitlock’s The Afghanistan Papers sold just under 17,000 copies.