Here is what you need to know to get started with WordPress
What is WordPress and why should I use it
How to install WordPress (locally and online)
Login to WordPress
https://www.elegantthemes.com/blog/wordpress/wordpress-login
Switch between Frontend and Backend
WordPress Backend – all the settings
Dashboard
https://www.elegantthemes.com/blog/wordpress/wordpress-dashboard-the-complete-guide
Posts
https://www.elegantthemes.com/blog/wordpress/wordpress-posts-how-to-create-and-manage-them
Media
https://www.elegantthemes.com/blog/wordpress/how-to-use-the-wordpress-media-library
Pages
https://www.elegantthemes.com/blog/wordpress/wordpress-pages-how-to-create-and-manage-them
Comments
Appearance
Plugins
Users
https://www.elegantthemes.com/blog/wordpress/how-to-add-new-users-to-your-wordpress-website
Tools
Settings
https://www.elegantthemes.com/blog/wordpress/how-to-configure-your-wordpress-general-settings
WordPress Media Settings
https://www.elegantthemes.com/blog/wordpress/how-to-configure-your-wordpress-media-settings
Reading Settings
https://www.elegantthemes.com/blog/wordpress/how-to-configure-your-wordpress-reading-settings
Discussion Settings
https://www.elegantthemes.com/blog/wordpress/how-to-configure-your-wordpress-discussion-settings
Writing Settings
https://www.elegantthemes.com/blog/wordpress/how-to-configure-your-wordpress-writing-settings
Privacy Policy
https://www.elegantthemes.com/blog/wordpress/wordpress-privacy-policy
User Profile
https://www.elegantthemes.com/blog/wordpress/wordpress-user-profile
WordPress.com vs WordPress.org
https://www.elegantthemes.com/blog/wordpress/wordpress-com-vs-wordpress-org-whats-the-difference
Many more Guides can be found here: