Regular Bill Books require the use of carbon paper. It is a very thin paper that needs to be placed between two sheets of paper, so your writing transfers to the sheet underneath. This helps create a duplicate copy of the original writing.
Carbonless bill books have a special coating on the top and bottom of the paper that transfers the writing directly without having to insert carbon paper. You can choose between Duplicate (2-part) and Triplicate (3-part) formats. For custom Quadruplicate (4-part) carbonless Bill Books, please contact us.