This isn‘t a book about academic study techniques，
but since you’re diligentlyreading the endnotes，
here‘s a deceptively simple study method
that works wonders:pick an idea，
take out a blank sheet of paper，
then try to explain that idea completelyusing very simple language ，
as if you’re teaching a beginner.
The gaps in your knowl-edge will become clear very quickly，
which makes it easy to go back to the source ma-terial to learn what‘s missing.
Scott H.Young，a study skills researcher，
calls this the“Feynman Technique”（in honor of the renowned physicist Richard
Feynman ） ，
and it’squite effective！