About the product: This book is a condensed collection of the thought processes and strategies of a "serial entrepreneur" who has launched and succeeded in numerous businesses. It's not just about motivational speeches; it comprehensively covers concrete theories for growing a business with "reproducibility." • Those considering starting a new business • Those who don't want to fail at starting a business or side business • Those who want to know the "business model" to survive in a rapidly changing era This book is highly recommended for those who want to gain practical knowledge that can be immediately applied in the business world.