Your Six-year-old: Loving And Defiant by Frances L. Ilg & Louise Bates Ames.

This is part of a series of books, each one dealing with a different age and stage of a child’s development:

• Your One-Year-Old: The Fun-loving, Fussy 12-to 24-month-old
• Your Two-year-old: Terrible Or Tender
• Your Three-year-old: Friend Or Enemy
• Your Four-year-old: Wild And Wonderful
• Your Five-year-old: Sunny And Serene
• Your Six-year-old: Loving And Defiant
• Your Seven-year-old: Life In A Minor Key
• Your Eight Year Old: Lively And Outgoing
• Your Nine Year Old: Thoughtful And Mysterious
• Your Ten to Fourteen Year Old