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Frances L. Ilg

Frances L. Ilg wrote numerous books, including The Child from Five to Ten, Youth: The Years from Ten to Sixteen, and Child Behavior, before her death in 1981. She was also a cofounder of the Gesell Institute of Child Development at Yale.
Your One-Year-Old
Your Five-Year-Old
Your Three-Year-Old

Books

Your One-Year-Old
Your Five-Year-Old
Your Three-Year-Old