The order of the Joe Ledger novels typically starts with 'Patient Zero'. Then there are subsequent books in the series following a certain narrative sequence that builds on the character development of Joe Ledger and the overarching plot involving various threats and conspiracies.
Well, the order of Joe Pickett novels starts with 'Open Season'. Then comes 'Closed Range' and so on. Each novel builds on the character development of Joe Pickett. As the series progresses, we see his growth as a game warden and how he deals with various challenges in the Wyoming wilderness. The novels follow his adventures chronologically in terms of the events that unfold in his life.
You can find the correct order of Joe Ledger novels by checking the official website of the author. Usually, they list the books in the order they were published.
Off the top of my head, the first one is 'Open Season'. Then comes 'Closed Range' and so on. But it's best to check the official website or a dedicated book series guide for the complete and accurate chronological order.
You could make a simple list. Write down the titles as you find them in the correct order, and then keep referring to it. Maybe even laminate it so it lasts.
You should start with the earliest published Joe Pickett novel and go forward in the order they were released. It gives you a coherent and immersive reading experience.