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Unlocking the Guitar: A Deep Dive into Troy Stetina’s Fretboard Mastery
Knowing the positions individually is useless. The book contains brutal "neck-wide" exercises. You will play a C major scale starting at the open string, moving through all seven positions, and ending at the 15th fret without stopping. When you can do this at 120 BPM, you have achieved "mastery."
Unfortunately, the majority of publicly shared Fretboard Mastery PDFs are flawed:
If you know who the publisher is (for example, Hal Leonard), you can check their website for the book. They sometimes offer digital versions or you can sign up for their newsletter to find out about availability.