The author of the article is Delores Diei, a software engineer who created a microlearning application using Python and Twilio SendGrid. The application delivers daily chapters from the Python Language Reference to an email address. To build this application, one needs to create a GitHub repository, install necessary packages, scrape data from the Python documentation, set up an email service using Twilio SendGrid, deploy the application on Heroku with a scheduler add-on, and configure environment variables. The application is designed to be automated, sending daily emails at a specified time.