Dolly Parton started the Imagination Library program in her native Sevier County.
A combination of tax dollars and private donations help fund Dolly Parton's Imagination Library program, but the post office says the group isn't paying enough to get every book into the right hands.
The program sends books to registered kids once a month. The program started in Sevier County, but has spread all over the world.
When books end up at the wrong address, the postal service used to hold the returned books and wait for volunteers to come pick them up.
But the post office says holding the books costs them money, so they're enforcing a long standing policy to shred returned items instead.
"It seems like it would be more beneficial and quicker to toss books in a bin than it would be to have someone shred them, but apparently that's not the case," says Elizabeth Black, who works for Books from Birth.
The postal service says other businesses pay extra to have mis-addressed items returned.
Program volunteers say those extra fees would put them under.
In Tennessee the program costs $24 dollars per child.