The cost of the book is usually right on the book with the ISBN, so I usually leave it in the scan. If you tell me which pages with the "th" problem I can tell you what it's supposed to be. I still have the book here. -- Jamie in Michigan Currently Reading: Who Do I Talk To? by Neta Jackson Earn cash for answering trivia questions every 3 hours: http://instantcashsweepstakes.com/invitations/ref_link/49497 See everything I've read this year at: www.michrxtech.com/books.html