Public libraries around the world generated a record level of digital content circulation in 2019, providing patrons access to more than 326 million e-books, audiobooks and digital magazines, a 20% increase over the previous year, according to a report by Rakuten OverDrive, a digital distribution vendor for libraries. Late last year, Rakuten agreed to sell OverDrive to the private equity firm KKR.

According to the report, 73 public library systems in five countries each loaned over 1 million digital books over the past year, including eight systems that hit the million loans mark for the first time. Among the top digital library lending systems are the Toronto Public Library (6.6 million digital loans), Los Angeles Public Library (the top U.S. library with 5.9 million digital loans); and the National Library Board of Singapore (the top lender outside of North America with 4.2 million loans).

According to the OverDrive report, the increase in digital borrowing represents the “library’s role as a valued discovery channel” for publishers and authors. Nevertheless, the OverDrive report on digital lending comes in the wake of continuing concerns by publishers that digital borrowing may undermine book sales. These concerns have led to a continuing dispute between publishers and libraries over efforts by some publishers to restrict the ability of libraries to offer digital access to their titles.

According to the OverDrive data, the number of e-books borrowed rose 15% in the year to 211 million; digital audiobooks borrowed jumped 30%, to 114 million, and 59 million children's/young adult checkouts took place, a gain of 27% over 2018.

Among the most-borrowed e-books and audiobooks in 2019 are Where The Crawdads Sing by Delia Owens, Becoming by Michelle Obama, Educated by Tara Westover, Nine Perfect Strangers by Liane Moriarty, and Girl Wash Your Face by Rachel Hollis. .