In Seven, Jacqueline Leo explains the many valuable ways the number 7 can be a tool to define time, synthesize ideas, and keep one's mind and memory performing at top speed. Leo explores the powerful
A founder of Child magazine demonstrates how the number seven may improve the focus of a life, drawing on the expertise of a respected mathematician to explore the number's scientific, psychological,
A founder of Child magazine demonstrates how the number seven may improve the focus of a life, drawing on the expertise of a respected mathematician to explore the number's scientific, psychological,
