Re:Foundations of Data Science [pdf]
by yummyfajitas on Monday October 10, 2016 @07:49AM
(#12676489)
I sometimes jump in at the place above my level and read both books simultaneously. You often need only a few things from the prerequisite class.
But yes, there is no substitute for learning all the things you need.
If you want to learn something difficult that's above your level, and learning that something includes learning a prerequisite subject that's also above your level, you simply start at the node in the DAG that's at your level and work through the prerequisites if you're serious.