Immediate purchase accepted / Price negotiation accepted / Not sold individually Accessories: None / Outer box: None / Instruction manual: None Thank you for viewing. This is the book "Dekiru Hito wa Cho-Tanmin!" (People Who Can Do It Are Ultra-Short Sleepers!) Author: Daisuke Hori *The following is quoted from a certain shopping site: Get time, money, memory, concentration, motivation, and health with less than 3 hours of sleep a day, without drowsiness or fatigue! Performance and motivation actually INCREASE when you don't sleep! The only book in Japan, or even the world, that describes how to become a short sleeper. ￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣ There are people in the world called "short sleepers" who function on 45 minutes to 3 hours of sleep a day. Famous examples include Da Vinci, Napoleon, Edison, Bill Gates, and in Japan, Sanma Akashiya and GACKT are also known for being short sleepers. Far from being troubled by drowsiness or fatigue, they maintain high concentration, memory, motivation, and health, and perform at their best every day. The author was originally a long sleeper who slept 8 hours a day, but for 6 years from the age of 25, he became an ultra-short sleeper with an average of less than 45 minutes of sleep a day. As a short sleep instructor, he has trained over 600 short sleepers who sleep less than 3 hours. The success rate is 99%, including businessmen, students preparing for exams, and even doctors, famous politicians, athletes, and even second-grade elementary school students. And everyone benefits from short sleep and achieves their dreams. It's unthinkable from the common sense of sleep, but this book introduces the evils of sleep and the benefits of short sleep, and describes how to become a short sleeper in detail. This is the only book in Japan, or even the world, that will bring about a dramatic change in your life. ..... We appreciate your purchase and consideration. This item was received from an acquaintance. There are no noticeable scratches or stains from the time I received it, and I think the condition is good even to the untrained eye. We are not responsible for any problems after purchase. Please be aware of this beforehand. If you have any questions, please contact us in the comments section. Thank you for your consideration.