How to Write a Good Twist in a Novel

I read this book in one sitting. It was so gripping from the very first chapter. And i think as a thriller writer, maybe you can speak to that, that it's hard to come up with a good twist or twists. M and i'm wondering if you have any, you know, insight into into that for your readers? Like what it takes to keep them guessing when they may read a lot of your books, or a lot of other shrilllers.