EXHIBIT 18 May 17, 1999 Mr. Gerald A. Henseler Banta Corporation 225 Main Street Post Office Box 8003 Menasha, Wisconsin 54952-8003 Re: Form 10-Q Report for the quarter ended April 3, 1999. Dear Mr. Henseler: This letter is written to meet the requirements of Regulation S-K calling for a letter from a registrant's independent accountants whenever there has been a change in accounting principle or practice. We have been informed that, as of January 3, 1999, the Company changed from the last-in first-out method of accounting for inventory to the first-in first-out method. According to the management of the Company, this change was made to provide a better matching of revenues and expenses and to be consistent with prevalent industry practice. A complete coordinated set of financial and reporting standards for determining the preferability of accounting principles among acceptable alternative principles has not been established by the accounting profession. Thus, we cannot make an objective determination of whether the change in accounting described in the preceding paragraph is to a preferable method. However, we have reviewed the pertinent factors, including those related to financial reporting, in this particular case on a subjective basis, and our opinion stated below is based on our determination made in this manner. We are of the opinion that the Company's change in method of accounting is to an acceptable alternative method of accounting, which, based upon the reasons stated for the change and our discussions with you, is also preferable under the circumstances in this particular case. In arriving at this opinion, we have relied on the business judgment and business planning of your management. We have not audited the application of this change to the financial statements of any period subsequent to January 2, 1999. Further, we have not examined and do not express any opinion with respect to your financial statements for the three months ended April 3, 1999. Very truly yours, /s/ARTHUR ANDERSEN LLP ARTHUR ANDERSEN LLP