Yutzman, I took a TIA A+ course at a tech school. I really enjoyed it! (I took it for fun and because I volunteer fixing computers) There are many good, but huge book for learning the content. The one I read was
CompTIA A+ Certification All-in-One Exam Guide, Sixth Edition by
Michael Meyers (Hardcover - Dec. 21, 2006) Perhaps a little out of date now but there are plenty of more recent books. I bought it when I was hypomanic and read it two times in a week -- it was 1200 pages. I hope you make it through the course okay.