Numbers and Letters - Vowels, from Europrice, is the volume dedicated to vowel recognition within the Numbers and Letters collection. The Numbers and Letters collection works separately, by volume, on the recognition of numbers, vowels, and consonants, through simple and repetitive exercises suitable for early learners. Europrice is the leading children's book publisher in Portugal, with a catalog designed to stimulate creativity and motor skills through hands-on learning, rather than screens. It is a preferred option for introducing vowels before moving on to consonants in the same collection.