Thermal Flying
$53
The best-selling guide to thermalling and going cross country, revised line by line for this third edition.
Martens explains what a thermal actually is and then what to do about it: where to look, how to centre, when to leave. The photography and diagrams carry as much of the teaching as the text, which is why it reads well even when you are dipping in between flights.
Buy it once you can stay up and want to start going somewhere.
