Repurpose, Recycle, Rewrite

All three of the title terms are used to describe an old practice. The current lingua franca is repurpose, which sounds like bureaucratese to me. The advice used to be to change the slant of an article to resell it to another market. Thinking has expanded to include books, even novels. Examples: sell parts of a novel as podcast short stories, create a blog centered around the book or its main character; offer website content about the book's topic (a good way to use up all that research for a fiction piece that didn't make it into the story.)

If you've become a specialist, an expert in a particular field, the only different material you have to work with is news: discoveries, innovative applications, scandals. Continuing sales depend on your ability to rework what you already know, taking alternative approaches to it, or mining one aspect for details. This is what novelists do when they create a series, sometimes erratic in timeline, such as prequels.

Look at your best work (most popular or highest paid, something that won a prestigious award). Turn it around and over, examine how you can elaborate, extend, deepen or explore different facets. Perhaps you can even resell it, with minor alterations, to a noncompetitive market. Slap a new opening on that baby and send it out again on the cycle that leads to sales.