Mastering Paragliding
$53
Kelly Farina takes the whole sport and breaks it into stages you can actually work through.
It runs from basic glider handling up through thermalling and into high-level cross country, and the structure is the point: each stage has a goal you can tell whether you have met. That is rarer in flying books than it should be.
Good if you learn better with a syllabus than with anecdotes.