Beauty by Bill Wallace was published in 1988, but it may as well have been written yesterday.
Luke's dad took off, and his mom was just trying to make ends meet. She got laid off from her job in Denver, and had no choice except to move in with Luke's grumpy grandfather in Oklahoma. Not the best situation! Luckily for Luke, his grandfather runs a ranch with horses and cows, and there is always something to do. Luke finds an unlikely friend in Beauty, a gentle old horse with a funny personality.
This is a story about friendship, but it is also the story of how Luke came to terms with his parents' divorce, and his father's absence.