Editor’s note: This is part of The Know’s series, Staff Favorites. Each week, we will offer our opinions on the best that Colorado has to offer for dining, shopping, entertainment, outdoor activities and more. “Plainsong,” by Coloradan Kent Haruf. Colorado is home to many amazing authors, among them Peter Heller (“The Dog Stars”), Helen Thorpe (“The Newcomers”), John Dunning (the Cliff Janeway series), Margaret Coel (the Wind River series), and our own regional book reviewer Sandra Dallas (who has written 16 adult novels to date, including her latest, “Little Souls,” due out this month). My favorite is Kent Haruf, author of “Plainsong.” In a 2013 review of another Haruf novel, “Benediction,” the Denver Post’s Tucker Shaw wrote: “Colorado author Kent Haruf has an extraordinary grasp of quiet.” Sigh.