Birth & Up. Encourage curiosity and multilingual exploration of nature with the Words of the World board book set. Explore animals, birds and plants in seven different languages including; English, Spanish, French, Hindi, Chinese (Mandarin), and Arabic, as well as the language of universal friendship, Esperanto. The Words of the World board book series encourages multilingual exploration and curiosity about our world among young readers. Each book promotes language learning through playful and sophisticated collages and even includes phonetic pronunciation for Hindi, Chinese, and Arabic. Set of 4 board books.