I know for third grade, genre study is an important part of the Language Arts curriculum. I never wanted to spend a ton of money on the genre posters at teacher stores, and they never had the EXACT genres I wanted. So I created my own. The first six are freebies at my TpT Store and there are ten others that match (but they're landscape orientation) for only $1.99! I hope this will help you as much as it helped me and my students!