... : message, telephone #, invoice, etc.. Carbonless book:also called as carbonless note book, carbonless invoice book, carbonless message book, carbonless order book, etc..Environment-friendly material&Ink ... , Flyer,Booklet, etc..Usage:leave message, telephoe #, order information, invoice, statement, agreement, etc..Carbonless Book 1. Cover: C2S, C1S, Offset Paper, Art ...