While working on her recent novel, Jennifer Egan experimented with using PowerPoint slides to tell her story. In the video embedded above, the novelist explained her process–showing other writers how to follow in her footsteps.

The slide show is part of her new novel, A Visit from the Goon Squad. You can see the slideshow here.

Egan spoke at BEA’s 7x20x21 event, a BEA presentation discussion curated by Ryan Chapman and Ami Greko. They gave a number of industry professionals seven minutes to present on 20 slides–allowing only 21 seconds to talk about each picture.