Home > Event > List of Events Let's Go Teacher's Book Exchange! To help you make the move to Let's Go 3rd Edition, we'd like to offer you a free Teacher's Book. Simply fill out the information on the Exchange Form, remove the cover from your 2nd Edition Teacher's Book, and attach this form to the cover. Then mail it to us, and we'll send you a new 3rd Edition Teacher's Book FREE! Event Term : 2007.02.01 ~ 2007.03.31