1. Google API Key

2. Google Developers Console
You sign in with your Google account credentials.

3. Expand APIs and auth, APIs will probably be selected by default, search for the desired API

4. Click on the OFF-ON toggle button, check the agree checkbox, and click the Accept button

5. Note Books now moved to the top of the list, click on it

6. Click on Credentials on the left

7. Credentials (with actual credentials hidden – get your own)

8. HTML Page: main features a form with a text input and a submit button

10. PHP that handles previous form (API key hidden again)

11. http://www.lasalle.edu/~blum/c349wks/Books.php JSON output

12. The items property is an array – notice the “items”:[

13. The elements of the items array are objects with properties such as kind, id, etag, selfLink, volumeInfo, etc

14. The volumeInfo property is itself an object with properties such as title, authors, publishedDate, etc.