Korean book 백만장자 시크릿 / 부를 끌어당기는 17가지 매뉴얼 Secrets of the Millionaire Mind

The book outlines several mindset shifts — I'm curious what prompted the author to focus on these particular principles and how they evolved.

While motivational, parts of the book seemed to suggest that changing beliefs alone can directly lead to wealth. Do others think there's more to it, or does mindset really make that big of a difference?

The strategies sound promising, but I'm wondering if anyone has actually applied them consistently and seen tangible results over time.