From Publishers Weekly:
Bookstore sales rallied slightly in December from deep monthly slumps for most of 2020, but were still down 15.2% in the last month of the year compared to December 2019. For all of 2020, bookstore sales fell 28.3% from 2019, according to preliminary estimates from the U.S. Census Bureau.
December bookstore sales were $879 million, down from $1.04 billion in December 2019. The 15.2% December drop was the smallest decline since February, when sales slipped 0.7% before the global pandemic struck. In March, sales fell 33.2% as retail lockdowns kicked in, then plunged 74.2% in April as stay at home orders fully took hold. May sales were slightly better, falling 60% from May 2019.
Bookstore sales declines generally eased as 2020 moved toward the end of the year. November sales were down 21.5%, following a 28.9% decline in October. For the full year, bookstore sales were $6.34 billion compared to $8.84 billion in 2019.
Link to the rest at Publishers Weekly