We offer several types of SuperSummary subscription plans. The longer-term subscriptions are much more cost effective for regular users, as you can save significantly over the course of the subscription.
However, we realize that some of our customers initially subscribe with a particular book in mind. If you are hoping to use one of the guides for just a few weeks, we recommend purchasing the shorter-term subscription and then cancelling before the plan renews. Once cancelled, you will not be charged going forward.