Perhaps not directly related to books and writing at first glance, but it may provide some ideas about how different characters view the world and themselves and how they may wish to craft the way others see them.
Per his personal interest in photography, PG will note that apps and programs to enhance and modify photographs have exploded since the advent of cell phone cameras. Not that long ago, Photoshop and Lightroom were pretty much the only games in town, but now modifications that would have taken a long time to get right with those expensive tools are possible in seconds with a $3.00 app.
PG apologizes for the autoplay setting. The video is in a format that didn’t provide an option to permit the viewer to decide whether/when to start the video.