Figures from Nielsen BookScan show it also sold 20 times the next new entry by Jackie Collins, The Power Trip.
BBC: JK Rowling novel tops fiction chart
2.
"At a time when millions are reflecting on the life and legacy of Jackie Robinson, Jason Collins is a hero for our own times, " the group said.
CNN: NBA's Jason Collins comes out as gay
3.
The movies will go straight to DVD and be sold exclusively in Tesco stores, with the first film of the venture, "Paris Connections, " based on a book by popular romance author Jackie Collins.