In the preceding chapters, you created a chatbot using the Amazon Lex service, named MarketNanny. This chatbot receives input from you about a stock ticker symbol and then, relays that information to a Lambda function, which then goes out to an external API and retrieves that information. The Lambda function then sends this information back to the chatbot, which in turn provides it to you by means of conversational text and speech interfaces.

You have already used a text interface before, and in the following chapter you learned how to set up a voice-based call center using the Amazon Connect service. You created a contact flow and populated it with the appropriate nodes and properties for those nodes to connect to your MarketNanny chatbot and allow anyone to converse with the chatbot through a voice interface that's available by dialing a local phone number!

In this chapter, you will use the Amazon Rekognition service to perform various image processing tasks. First, you will...