4 days a week, horse caretaker Ridwan Sururi loads his equine partner Luna with a couple of crates full of books, and leads her around the elementary schools in the farming village of Serang in Indonesia. He has provided this library on horseback service for free since 2015; the village has no public library, and most of the villagers cannot afford to buy books. He hopes the books will help the children learn about the world and grow as human beings. Discover the story of one man's mobile library and how it enriched the everyday lives of the people in his village.