This is a beautifully illustrated look at the idea of time - throughout time! When we first started measuring it, dividing it up, what early concepts of time were and what it means to us today.What is time? When did we first use it? Does it always work? How do animals tell time? This is a fun and fascinating look at time from the first calendars and clocks to the digital watches and precise time-keeping methods of today. This is a companion to "The Museum Book", written by Martin Jenkins and illustrated by Richard Holland.