"Where Do Priests Come From?" is a great little book by Elizabeth Ficocelli; perfect for vocation awareness but also a good tool for renewing love and respect for the priesthood. 
 
"A lovely little book explaining a most profound mystery: the priesthood. I pray this book finds its way into the hands of many young boys so that they can be inspired to ponder the question: 'Is God calling me to be a priest?'" --Father Donald Calloway, MIC
 
This book would also be good for religious formation programs. 14 pages, softcover, full color illustrations. K-5th grade 8½"x8½"