41 Publishing of coloring and activity books for children; Publishing of books, e-books, audio books, and illustrations in the field of children's education and entertainment, namely, early childhood education; Publishing of music for children's education and entertainment, namely, sing-along songs, nursery rhymes, and baby sensory songs in the field of riddles, vocabulary, currency, geography, nature, zoology, foreign language, foreign cultures, emotions, colors, and early childhood education.