If you're interested in learning more about the Woodpecker Method 2, I recommend checking out the following resources:
The combination of for deep reading (Smith’s prose on psychology and calculation technique is excellent) and PGN for interactive solving creates a powerful synergy. You will train both your unconscious pattern recognition (the woodpecker’s peck) and your conscious calculation (the woodpecker’s focus). The Woodpecker Method 2 Axel Smith -PDF PGN...