Which direction do you put the batteries in the very lonely firefly board book?

In the "Very Lonely Firefly" board book by Eric Carle, the batteries are inserted with the positive (+) side facing up. The book uses a light feature to enhance the reading experience, and ensuring the batteries are positioned correctly is essential for it to work. If you're unsure, it's always a good idea to check the battery compartment for diagrams indicating the correct orientation.