I remember reading that book when I was a CFI and thinking, "Wow, we've learned a lot about basic aerodynamics since this was written!"

Although a classic, using Stick and Rudder as a primary source is a bit like a med student reading a Biology text written in the 1940s. Look up something written more recently.

* This should not preclude one from spending many nights pouring over Aerodynamics for Naval Aviators (it doesn't get any better than that), but save that for your CFI.