Keep a copy of your invoices, receipts, delivery details and signatures and you`ll always know you`re in the right. Easy tear-off top sheet original and carbon copy makes sure everyone`s looking at the same thing.The Office Depot Duplicate Books are perfect for making instant copies of hand written notes and documents. Just write on the first sheet, and tear it off to reveal the carbon copy page beneath. Save yourself precious time and eliminate the chance of copy-error.Tear off the original and a copy stays in the book. These are so easy to use, the top sheets are perforated to come away clean and each set is numbered 1 to 100 to help you keep track of things. What`s more, it saves time and money using pre-printed books. A desktop essential in any office.A ruled feature of the pages ensures that your notes are written in a straight line, for improved presentation and an added air of professionalism.