I like Price Theory by David D. Friedman (http://www.daviddfriedman.com/Academic/Price_Theory/PThy_ToC.html http://www.daviddfriedman.com/Academic/Price_Theory/

I like Price Theory by David D. Friedman (http://www.daviddfriedman.com/Academic/Price_Theory/PThy_ToC.html http://www.daviddfriedman.com/Academic/Price_Theory/PThy_ToC...) and Human Action by Ludwig von Mises (http://mises.org/resources/3250 http://mises.org/resources/3250).