If you opt in, you allow Leanpub to put your book on The Shelf for a period of up to 3 months. At the end of that period, the cost of the shelf spot will be calculated based on the total royalties earned from purchases originating from The Shelf.

Many books in the Shelf Performance Plan are put on The Shelf for a month. Some are put on The Shelf for more than a month, up to the full 3 months. Some books are removed in less than a month if the shelf spot does not lead to enough sales. There is no guarantee that a book in the Shelf Performance Plan which is added to The Shelf will be left there for a full month.

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