There have been a few books that have helped me and more importantly I have enjoyed reading and rereading over the years. Reading "The Flying of Falcons" has provided some of the greatest insights in flying and hunting my goshawk. The funny part is if I listened to my wife, she has been telling me many of the same things.
My latest greatest insight from this book has been letting him eat all he wants from every kill. I'm amazed at how he is ready to go in a day or two at the most, and flies really well. He's an imprint. No screaming, very little bating, a hunting attitude when he's out of the giant hood. I am not even weighing him anymore, watching his attitude then when he's ready, we go.
If you haven't picked up a copy, get one.