The Master Key System
by Charles F. Haanel
A 1912 correspondence course in twenty-four lessons on concentration, visualization and the creative power of thought, reputedly read by a young Bill Gates (unverified). The exercises in stillness and concentration are genuinely useful mental training; the claims about thought shaping matter are of their era.
Read it if…
you want a vintage structured course in concentration and visualization.
Skip it if…
you want modern language; it is dated and repetitive.
Three things you will actually use
- Stillness and concentration are trainable.
- Visualization is mental rehearsal.
- Treat the metaphysics as history.
Do this first
Do lesson one: sit perfectly still for fifteen minutes daily for a week.
Our verdict
Useful exercises, dated claims.
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