Morgan Oesterling, a 4th-grader, puts a book in the little Free Library at HIS Kids Christian School in Jefferson Township in 2015.

Books come and go on the wind.

“Many times things are empty or nearly empty,” said Karen Pierce, Slippery Rock Community Library director. “Or if there's books in there, I know they're books I didn't put in there.”

The 4-foot-wide small red barn with a Plexiglas front, located along the stone wall on Main Street in front of North Country Brewing Co., opened for books in 2017.

It's one of the take-one, leave-one little libraries that dot Butler County, reaching areas that otherwise might not have access to a library and its services.

This is an excerpt from a story that appears in Friday's Butler Eagle.