Buying the Tuffcuff Jr. handbook

I want to order the handbook titled “TUFFCUFF Jr: The Ultimate Youth Pitching Program for Kids 7-14” But when I click on “add to cart” I get eh Amazon website and the description is for “TUFFCUFF Jr: Instructional Manual & Training Guide for Baseball Pitchers Ages 8 to 13 (1st Edition)”. How do I get the latest edition which covers age 7?