One of the better introductory treatments of lift, IMHO. :ok:

Neither role, even in its pure form, is insurance against some fundamental errors in the physics of flight.

"Lift requires power" leads to some unphysical conclusions. "Ground effect" gets a sign wrong.

If you want rather more solid attempt written by an Anderson, try John Anderson's "Introduction to Flight".

I think that this is a good quick reference guide:
The Aviation History OnLine Museum Theory of Flight Index