Here’s a 10/10 book by Cornelius Plantinga entitled Reading for Preaching. The nuggets of gold in this book are on almost every page. Not only are there a load of great illustrations to plagiarise, but also some excellent advice on what to read, how to read, and how to use what you read to inform your preaching. There’s also a great appendix with a recommended reading list. And Plantinga writes so beautifully you can’t but enjoy the ride. Get it on the wish list.