This book is for every age, anyone who can read and who is interested in what time is  will be the main audience. It explains why people think the time is relative, what is time, and gives the audience examples of different devices to "measure" time, also it explains why time travel is not possible.If you want to know how to better explain to your kids, your friends, or your students about what Time means, then in this book you will find the answers.

Click here to download 49 pages PDF($0.99).

You can read Chapter 1 here :