I bought this Nobunaga study guide earlier this year at the Kiyosu Castle gift shop. As you can see, it is simple and basic. Perfect for someone who is a newbie. Even for the professional historian, it is useful in my opinion. Included is dates, key battles such as Okehazama, Anegawa, and Nagashino, key Oda retainers, castles, and weapons. If you can find one these study guides, buy one!