Book sales: Joël Dicker ahead of Guillaume Musso in first week. With 81,835 copies of “A Wild Animal” sold in seven days, the Swiss writer has the advantage.

In bookstores on March 5, “Someone else” by Musso may have recorded a meteoric start with 69,158 books sold, but it is not enough. Unsurprisingly, their previous books, each released simultaneously in paperback version, sold like hotcakes.