The biggest book release of the year isn’t a blockbuster novel or an explosive celebrity memoir. It’s concert merch. Taylor Swift’s “Eras Tour Book,” which was released on Nov. 29, sold 814,000 print copies over the Thanksgiving holiday weekend — th

For the last 21 months, Taylor Swift’s Eras Tour has been the biggest thing in music — a phenomenon that has engulfed pop culturebloodmoon, dominated news coverage and boosted local economies around the world. Now we know exactly how big. Through it