WordPress is the most popular MiddCreate application, and the most popular content management system in the world, so the internet abounds with resources. Here are some we like:
WordPress Essentials course on Lynda.com: A comprehensive video course that will show you how to use all of WordPress.
Setting up your new WordPress site: 15 steps to get your new site ready to go
wpbeginner.com: One of the best, most comprehensive WordPress resources out there, whether you’re a beginner or not.
WP Theme Detector: Find out what theme and plugins someone is using on their WordPress site.
HTML 101: Guide to understanding HTML on your blog
Every Tuesday: How to Customize Your WordPress Theme (video): Teela is primarily a design blogger, but she also has a great video tutorial series about WordPress.
44 Best Free WordPress Blog Themes for 2017: This list with will give you some ideas for WordPress themes you like. If you are looking for something more specific, there are many similar lists out there – just do a search for “Free WordPress photography/portfolio/business/etc. themes” and you will be surprised at all the options you find.
Selecting the Perfect WordPress Theme: 9 Things You Should Consider: This wpbeginner article links to lots of helpful resources and also explains how to install a theme in WordPress.
28 Most Frequently Asked Questions by WordPress Beginners: This article links to all the resources a WordPress beginner could need and then some.
More post about WordPress here.