Take a look at Jennie Nash's "Blueprint for a Nonfiction Book" to help you put together the early stages and the proposal. Work with a book coach who specializes in taking academic writers to public audiences. Be ready for rejection! I've been rejected by dozens of agents and am still looking. 😊

Ooo thank you

And whether it's podcasts, books for writers, or a book coach, find someone or something that helps you navigate the publication process. Big presses don't take direct pitches from writers; you'd need an agent. Smaller presses are a toss-up. Academic presses will take a direct submission.