I know there aren't a tremendous amount of competitive archers in here, but I recently got this book under recommendation of a localarcher that has been quite a mentor to me. This book is phenomenal, and thoroughly covers sports psychology and has some great ideas on how to control your mind under pressure, and how to train for that pressure and competition in general. It can be bought on amazon.com for about $12. I would say I have gotten a LOT from this book since I read it, and think it may be the second best book I have ever read to improve my archery (next to core archery).