“Think and Grow Rich” by Napoleon Hill. The book just doesn’t talk about money ONLY; it talks about 13 success principle which is timeless, considered the bible of Self Help industry, more than 60 million copies distributed, and the first edition was released in 1935. If you lack a sense of purpose or meaning or reason to work in your current job, this book will help you find all this in your current job.
This book is a business and motivational classic and really helped me break-through in my business. It gave me the mindset that enabled me to just make things happen.
I'm confident it will help you too, and that's why I'm presenting this to you.