I suggest that, if you're on Facebook, joining one of the shortwave groups there. Just three years ago I was in exactly the same position as you, didn't know anything about the technical aspects of shortwave, intimidated by the jargon, etc. I can testify that there's no real book out there for SWLing. My earliest information was contained in the user's manual that came with my first SW receiver, a Tecsun PL-600. From there, google was largely my friend. I found videos on youtube. (Look for "Official SWL Channel" for some very good beginner's information videos.) I found this group, which I joined and which introduced me to the fun of pirate radio. And I found the aforementioned shortwave groups on Facebook. Basically you have to ask a lot of questions and take in a lot of video and things do come piecemeal, however if it's really got you hooked, you'll learn quickly. Welcome!