Orson Scott Card discusses L. Ron Hubbard's writing essay "Magic Out of a Hat" and how it is as valid today as it was when he wrote it. He compares the styles and techniques of several early masters and why Hubbard's work remains memorable.
You can read this and several other essays, along with 13 videos featuring David Farland, Orson Scott Card, and Tim Powers in "L. Ron Hubbard's Writers of the Future Online Workshop" available for free here: https://www.writersofthefuture.com/writing-workshop/