To cancel your Fine Woodworking subscription or membership, it is advisable to contact their customer service directly either by phone or email. Locate their customer service contact information on their official website and inform them about your intention to cancel. They will guide you through the cancellation process and provide any necessary instructions specific to your subscription type and payment method used during sign-up. Additionally, ensure that you have any relevant account information readily available when contacting them in order to expedite the cancellation process efficiently.