Real estate broker and author Steve Cannon will sign his book “40 Days” at 6:30 p.m. Thursday at Fitness Sports, 8810 Swanson Blvd. in Clive. The book signing will follow a fun run that starts at 6 p.m. Proceeds from books sold at the event, as well as from e-books sold that day, will be donated to Above and Beyond Cancer. The book chronicles Cannon’s 1,037-mile run around Lake Michigan in 2012.