Well-targeted book advertising can be a great way to maximize sales. You'll increase your effectiveness and save money by studying which publications reach your target audience, how much they charge, and their specifications for ad production.
If you need to pay a professional to design and execute your ads, however, that may move your campaign from a good idea to beyond affordable.
Build Your Own WordPress Site
https://websitesetup.org/customize-wordpress-101/
One of the most useful tools to promote your book is to build an author's website for yourself and you can do it easily using this guide.
Lightning Source Publisher Marketing Advertising Guide
https://www.lightningsource.com/ops/files/IngramAdvertising.pdf
Advertising suggestions for print-on-demand books.
Baker & Taylor Ad Guide - with pricing and specs -
http://www.btol.com/PDFs/B&T_product_marketing_guide.pdf
For help in reaching library and retail buyers; including pricing and specs.
Facebook Ads
https://www.facebook.com/business/
Driving online sales, promoting your app, raise brand awareness.
Show ads on Google Search, Maps, YouTube, and beyond.