An account of the different ways in which things have become cognitive extensions of the human body, from prehistory to the present. An increasingly influential

An account of the different ways in which things have become cognitive extensions of the human body, from prehistory to the present.

This is a book about time, but it is also about much more than time—it is about how the objects we use to think about time shape our thoughts. Because time ti

Explains what the mind is, how it evolved, and how it allows us to see, think, feel, laugh, interact, enjoy the arts, and ponder the mysteries of life.

MORE THAN 500,000 COPIES SOLD! Are your thoughts out of control--just like your life? Do you long to break free from the spiral of destructive thinking? Let God