How much of an impact can an animal have? How many lives can one cat touch? How is it possible for an abandoned kitten to transform a small library, save a classic American town, and eventually become famous around the world? You can't even begin to answer those questions until you hear the charming story of Dewey Readmore Books, the beloved library cat of Spencer, Iowa.

Dewey's story starts in the worst possible way. Only a few weeks old, on the coldest night of the year, he was stuffed into the returned book slot at the Spencer Public Library. He was found the next morning by library...