Taylor Swift landed the biggest book launch of the year with the publication of her official Era’s Tour book – but fans were quick to notice multiple errors.

Over 800,000 copies (814,000 to be precise) flew off shelves in the US over Thanksgiving weekend, according to Circana, which tracks the print market.

The huge number of sales came despite Swift selling the book exclusively through American supermarket chain Target, snubbing the likes of Amazon and other retailers or using…