Once unzipped, you will find the
PACKT_CAWM.unitypackage which contains the project hierarchy and sample content and code. After that follow these steps:
Open your Unity project if it does not launch by default, or create a new one if you have not already done so.
Import the package by navigating to Assets | Import Package | Custom Package....
In the window that appears, navigate to the location where you unzipped the project files and choose PACKT_CAWM.unitypackage.
In the Importing Package dialog that appears over the main interface, make sure that all assets are checked before pressing the Import button.
It may take a short time for all of the assets to finish loading.