Prolific author and Hollywood favorite Elmore Leonard, 87, suffered a stroke on July 29 and is recovering in a Detroit-area hospital.
Leonard's well-drawn characters and ear for dialogue have long drawn Hollywood's attention to his work.
The author of the books that inspired FX's Justified and the films Hombre, Get Shorty, Out of Sight and Jackie Brown was working on his latest book--his 46th novel--at the time of the attack a week ago, according to the Detroit News.
A source tells The Hollywood Reporter that the stroke was not life-threatening.
Leonard's longtime research assistant Gregg Sutter said the family was "optimistic" about the author's condition, which he said had been improving a little bit each day in the week since the stroke.
"He's a fighter," said Sutter.
The film adaptation of Leonard's The Switch, starring Jennifer Aniston, Mos Def, Tim Robbins and Isla Fisher will premiere at the 2013 Toronto Film Festival.