Every month, Imagination Library, Dolly Parton’s nonprofit program, mails a free book to more than a million children — from infants to preschoolers.

Maureen Pao, NPR:

[The country music legend] visited the Library of Congress on Tuesday to celebrate a major milestone in the Imagination Library’s history: delivery of its 100 millionth book. Not bad for a program Parton founded more than two decades ago as a small, local effort to help kids in her native Sevier County, Tennessee.

“We never thought it would be this big,” she told NPR in a quiet, wood-paneled room off the library’s Great Hall. “I just wanted to do something great for my dad and for my home county and, at the most, maybe a couple of counties over. But then it just took wings of its own, and I guess it was meant to be.”