There has been data ("Hank Haney's Essentials of the Swing: A 7-point Plan for Building a Better Swing and Shaping Your Shots - ISBN-13 978-0-470-43662-2") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Sun Dec 22 15:46:59 2019, so the data displayed here has been removed .