Former prime minister’s heavily promoted book, Unleashed, just hung on to No 1 bestseller spot in UK

Sales of Boris Johnson’s memoir, Unleashed, have slumped by 62% in its second week since publication.

The heavily marketed tome, promoted in a prolonged media round by the former prime minister in recent weeks, only just managed to cling on to the No 1 spot in the official UK Top 50 this week, selling 133 more copies than Tim Spector’s The Food for Life, according to Nielsen Bookscan’s Total Consumer Market data.