EXHIBIT 23.1 Consent of Independent Auditor CONSENT OF INDEPENDENT AUDITOR Shelley, Int'l C.P.A. Certified Public Accountant The Board of Directors Winmark, Inc. Gentlemen: This letter will authorize you to include the Audit of your company dated January 26, 2004 in the Registration Statement on Form SB-2 to be filed with the Securities and Exchange Commission. Yours Truly, /s/ Mark Shelley, C.P.A. - --------------------------- Shelley Int'l, C.P.A. Date: August 10, 2004 1