http://www.waterstones.com/waterstonesweb/products/jonathan+herring/how+to+argue/7832013/
http://www.amazon.com/The-Greatest-Books-in-Rhetoric/lm/R15CL1QS8DFB0F
another list of books http://www.figarospeech.com/rhetoric-books-on-amazon
this book takes you back to Scholasticism and the Renaissance. The 'trivium' was required (as was the quadrivium.) http://www.amazon.com/Trivium-Liberal-Logic-Grammar-Rhetoric/dp/0967967503