Denever
This is my favorite beginners book. I have it in hard copy, too, both to support her and because it's easier to use it for reference in that form. The course is called Learning the Tarot, but the site URL is actually learntarot.com
The book of Joan Bunning is a great starter too : Learning the tarot.
You can check all of the content online on her website (learningthetarot.com) but I personally prefer to have a hardcopy (and support the author for her work).