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Search engines use keywords so that when you add your book to our website the search engines will look for those keywords and direct traffic to your book. Keywords can make or break the amount of traffic to your book. When identifying keywords, select words or phrases found throughout the page content, title tag, etc. which will most likely be used by someone looking for your book. A good rule to follow is to target five to ten words or phrases that have a high search volume and best represent your book.