well... it isn't specially for teens but teens can understand it. it's a very nice book by Tom Regan, "Empty Cages" and there's another one that is "Animal Liberation" by Peter Singer.<br><br><br><br><br><br>
p.s: sorry for my english <img alt="" class="inlineimg" src="/images/smilies/undecided.gif" style="border:0px solid;" title=":-/">