In February, I spent $20 for a Goodreads ad for my epic fantasy ebook Crimson & Cream. To place an ad, Goodreads charges you for an initial set amount (a minimum of $10) and each click your ad receives deducts the cost per click (CPC) from your total amount paid. For example, if you spent $10 to start your campaign, and set your CPC to $1, you would get charged $1 for each click, up to ten, when your $10 would be depleted and your ad would stop running. You can set the amount you pay per click, although the instructions indicate the more you pay per click, the higher priority your add receives in placement. If you don't receive any clicks on your ad, Goodreads will refund your money upon request.