The author of the text is Alex Swan, a developer who built a picture caption game using Twilio SMS and PubNub, showcasing the game's functionality through a screencast and then diving into its code in a Github Repo. The game allows users to view an image, input a picture caption, vote on favorite captions via SMS, and interact with the web app. Alex is a long-time Twilio developer with experience in multiple programming languages, and his project can be found online as well as being part of Twilio's resources for developers.