Two more about deliberate practice:

The Sports Gene-- debunks some of the research-- there's a lot of variation, not a simple requirement of 10K hours. Also, elite achievement in at least some sports requires very specific physical qualities.

Effortless Mastery-- a jazz musician develops a system of deliberate practice on his own in the 80s/early 90s. He works earlier in the process of taking action by teaching a meditative state, then teaching how to maintain it as one plays. This isn't easy-- the first challenge is maintaining a meditative state while touching one's instrument.