Writing books with quality contents pays a lot, like wise selling other good products. But it does not end with good contents or product. You need to optimize your product's content, title, subtitle, categories, bullet point, etc. with keywords in such a way that is friendly with search engines like google and amazon. Also note that different search engines have different algorithms. So you need to understand the algorithms of different search engines, especially Google and Amazon if you want to really increase your book royalty earnings, Search Engine Optimization (SEO) is very important if you really want to boost your book's and product's rank and sales. This is because more than 80% of sales on Amazon, CreateSpace and other book marketing platforms come from searches on Search Engines like Google and Amazon Search engines. There are some extra steps you need to know, which I will reveal in here!

How to Optimize your books for search engines:
In this tutorial article, I will walk you through on how you can dramatically optimize your products ranks, sales and for Google and Amazon Search Engines. Most search engines have different algorithms which you must understand if you want your products to be friendly with them. I will also show you how to tweak your product's keywords in the title, description, bullet point, etc. to yield optimum sales without violating any of the policies of Amazon. I will also show you some relevant SEO tools and feedback software both free and paid ones that will help you optimize your amazon product listing.

SEE ALSO: THE 10 TESTED STRATEGIES FOR PROMOTING AND MARKETING YOUR EBOOKS TO INCREASE SALES
Key Differences Between Amazon's and Google's Algorithm at http://www.microsofttut.com/2017/08/strategies-for-promoting-and-increasing-your-book-sales.html

Amazon's search engine algorithm wildly differs from that of google search engine. Although both are search engines but their ulterior motives vary. The main motive of google is to provide adequate solutions to people's searches by referring them to websites. But Amazon's main motive is to provide customers with adequate products that will help them solve their problems. This means that Amazon mostly targets on converting searchers to buyers. Google converts searches to patronizers with their Ads banners.

NOTE:
Amazon has the ultimate analytics when it comes to book sales. So pay more attention to Amazon SEO.

Here are some other Key differences:

Data Structure:
Google expects and encourages webmasters to structure the data or content of their websites. Amazon on the other hand, use their product page index to structure the data by themselves. Webmasters need to understand structured data analysis before their web pages can rank well on google search engine while amazon sellers or authors don't necessarily need to fully comprehend it for their products to rank well on Amazon search engine. But if you are an author and you are really concerned with your product's rank google search engine, then you need to understand Google Structured Data Mechanism (which may require you to create a website for your product).

When a keyword is searched on google, it displays web pages with lots of information about the searched keyword. But if the same keyword is searched on amazon's search engine, it displays products that have lots of information about the search keyword with their prices.

Google search engine rewards webmasters whose site contents was able to satisfy a search customer and whose sites converts well in terms of the ads (AdSense) that appeared by placing their page links at the top of the search results. Whereas Amazon search engine rewards sellers whose products has the highest number of sales with time and also whose products was able to satisfy a buyer's needs by also placing their products on top of product search results. Now compare that to the basic way to build a web page.

On-Page and Off-Page Activities & Results:
As a webmaster, in other to gain popularity and trust on Google search engine, you have to spend a lot of your time optimizing your off-page signals. You build links, manage a social media presence, etc. which are the signal google use to measure your site's popularity and trust. Amazon search engine does not really care about these. Their main ranking criteria is the number of sales a product was able to accumulate with time, that is how many buyers that really bought your product after visiting your product page.

Page Content Uniqueness Outcome:
Google values web pages that have quality unique contents. Amazon does not care about the uniqueness of the product page content. They are only interested on the search keywords that were able to convert searchers to product buyers. This elaborates the need to research for keywords that will really help your product search and descriptions convert to sales on Amazon since your interest as a product seller or book author is to earn higher royalties from your products and books.

In Summary: Amazon Search Engine ranks:

1. Relevancy: That is, what is going to be most relevant for searchers to buy.

2. Sales: That is, what sells the most, converts the best and provides the most profit for you as a seller and for amazon as a company.
Your Book & Product Page Aspects to Optimize for Sales Boost - Amazon Product Page Breakdown

Now that you have fully understood the key differences between Amazon and Google Algorithm, let me now walk you through the various aspects of your product's page to optimize for an increased sales on Amazon.

Here are the breakdown of Aspects that make Up a Product Page:

Title and Subtitle
Product Images
Bullet Points
Product Description
Product Categories
Reviews
Sales (Price)
Product Back End Search Keywords
Product Canonical URL Slug
Product Super URL Slug

Your product super URL is optional. That means, it is not available by default unlike the Canonical URL. You can generate it if you wish. I will elaborate more on the last two on the above list.

Click http://www.microsofttut.com/2017/09/how-to-optimize-your-products-rank-for-search-engines.html to read full tutorial article with screenshots.