<p>If you really want to get a feel for engineering, instead of studying all the stuff that you're going to learn with everyone else anyhow, I recommend you read some more colloquial books about engineering. Here are some civi-flavored ones to check out:</p>
<p>The Art of Construction by Mario Salvadori
It's actually a kids' book, but it isn't written as such. It can be read by adults as just a quick read. It's a fantastic book written so that anybody can understand how buildings work, and what sorts of forces come into play. Amazingly written, amazingly illustrated... It's the book that first got me interested in structural engineering when I was about eight.</p>
<p>Why Buildings Stand Up by Mario Salvadori
Here's Salvadori's book for adults. I like his other book better, but it's a fantastic tour of the ideas involved in engineering. Basically, it's structural analysis and mechanics of materials packaged so that the normal, everyday dude on the street doesn't freak out and run away.</p>
<p>Why Buildings Fall Down by Matthys Levy and Mario Salvadori
"To the memory of my mother-in-law, Judith Bookman, who, upon receiving on her ninety-second birthday the first copy of Why Buildings Stand Up, said matter-of-factly: 'This is nice, but I would be much more interested in reading why they fall down.' -Mario G. Salvadori"</p>
<p>A Visual Dictionary of Architecture by Francis D. K. Ching
I keep this one on my bookshelves at work. It's a lot of fun to look at, but it's also incredibly informative for remembering what the difference is between joists, girders, girts, beams, stringers, headers, and what-have-you.</p>
<p>Structures: Or Why Things Don't Fall Down by J. E. Gordon
The New Science of Strong Materials: Or Why You Don't Fall Through the Floor by J. E. Gordon
I haven't gotten to these two yet, but I've got 'em on my shelf. Stay in structural/civil engineering long enough and your relatives will buy all these sorts of books as presents for you eventually. These two look interesting, I just haven't had time to read them yet.</p>