<p>I'm a sophomore now, and I want to self study AP Micro and Macro. I'm really interested in the field of economics. However, I'm afraid if I only studied from a prep book I wouldn't learn as much as I could. I haven't been able to find any online/college courses that seem more advanced than AP level. Does anyone know of any?</p>
<p>Or, should I go ahead and take a course from Northwestern CTD for AP Micro/Macro? It will grant me high school credit, and I might learn more.</p>