All of my websites are WordPress installations. I say I’m self-taught with a bad teacher. The good news is people like Anthony Hortin are in this world to help us out with the EasyWP Guide at a (more than) fair price! As noted on the About page:
My aim for the Easy WP Guide was to write something that was easy to read and that covered the basics in regards to editing & updating your site content … I’ve learnt so much from other WordPress blogs, sites and individuals so I’ve created this site so that I can give back to that same WordPress community and share my documentation with anyone who may be in the same situation. The documentation is available in PDF format, a brandable Word document and also ePub & Mobipocket eBook versions on the download page. Feel free to rebrand the Word doc and pass on to your clients if you find it useful. Alternatively, send them to this site where they can read the documentation online.
The PDF and online versions of his EasyWP Guide are free to read and download and other versions are moderately priced. The FAQ on the website describes options to re-brand the work for other purposes. Another reason to love the WordPress community!