Yes, you can cancel your subscription at any time. To avoid automatic renewal, login to your Manage My Account page to view your subscription's "Cancel By" date listed below your Plan. If you're not sure how to check the "Cancel By" date, please refer to the screenshots below.

You may also refer to this FAQ for instructions on how to cancel. Once canceled, your subscription will not renew and you will continue to have access to your training library through the end of your plan.