Simple 7 Step SEO Tutorial for Beginners
This is an excellent SEO tutorial written for beginners, but Webprem recommends this blog to anyone interested in SEO. It explains SEO in a way that is easy to understand. Webprem has already written multiple blogs about SEO, but the ahrefs.com blog is a great read and / or review for people of all levels.
Check it out at https://ahrefs.com/blog/seo-tutorial/