Let’s start at the very beginning. ABC-123 Learn My Letters and Numbers is a child’s introduction to the Alphabet and Numbers. This title has become like a tradition in day cares, preschools and early childhood education centers. ABC-123 Learn My Letters and Numbers is a child’s introduction to the essentials and building blocks of knowledge: the alphabet and numbers. 40 Pages of Fun Coloring with Square Back Binding. Manufactured in St. Louis, Missouri.