Some of the best resources for SEO help and guidance are listed here. It always pays to keep up with the latest trends.
General SEO Information
Google Starter Guide: a downloadable pdf to learn the best practices recommended by Google for having search engines index your site.
Beginners Guide to SEO: an in-depth tutorial by Moz Pro on how search engines work with a complete guide to cover the fundamental strategies that make your websites search engine–friendly.
Anatomy of a Search Result: a short video walks through the snippet that is shown when your site appears in our results pages.
Webmaster Guidelines: following the General Guidelines provided on this site by Google you can help Google find, index, and rank your site.
WordPress SEO
WP Beginners Ultimate Guide: Great getting started article for non-technical people
14 Best WordPress Plugins This article by WP beginner gives an overview of the latest plugins and tools for SEO in WordPress
Books
SEO 2017 & Beyond: Search Engine Optimization Will Never Be the Same Again by Dr. Andy Williams, 2013: strategies for the current year that take into account major changes in algorithms used for rankings
Web Marketing for Dummies by Jan Zimmerman, 2010: learn about the best tools to market a site