"The human voice is the organ of the soul."
                  – Henry Wadsworth Longfellow
In the previous chapter, we discussed the evolution of various voice-based personal assistants, discussed the capabilities of each of those, and finally compared two significant smart home-based personal assistants, namely Alexa and Google Home.
In this chapter, we will focus on Alexa. We will first learn about Amazon Echo, the smart speaker from Amazon, which enables a user to interact with Alexa and its various flavors. Later on, we will move on to learn about the anatomy of Alexa and what goes into making Alexa so interactive. We will do so by covering the following topics:
- An Introduction to Amazon Echo
- Anatomy of an Alexa Skill
- Building a Hello...
