Abstract: A checkbook using conventional, standard bank checks and preprinted record keeping sheets in booklet form where the data written on the check is simultaneously transferred onto one of the preprinted recording sheets. A first template, insertable in an inner pocket, has opposed outer guides for receiving slides of a cooperating second template, which cooperating second template has an elongated window and is movable along the guides of the first template for positioning its window in registry with a blank transaction line on the preprinted sheet, whereby upon the placement of a check over the cooperating second template and the writing of the check, data is simultaneously transferred onto the preprinted sheet.