- Title: Super-Concentration Hack - Author: Masayasu Iba - Subtitle: Going from Zero Motivation to Flow - Price: 1600 yen This book clearly summarizes "tips for entering concentration mode even on days when you lack motivation." Written by the popular business author Masayasu Iba, it's perfect for those who want to improve their performance in work, study, and certification learning. The content has been read once, and the overall condition is [Excellent]. ✔ No writing ✔ Clean page openings ✔ Maintains an easy-to-read condition However, there are [small scratches on the cover], so please check the photos. There are no problems with reading, but it is recommended for those who understand that it is a used item. This book is recommended for people like the following: ・Those who have been unable to concentrate lately ・Those who want to learn how to increase motivation and self-management techniques ・Those who want to switch themselves on It has practicality that makes you think, "I'll try my best today." If you were interested, or if you are looking for a book to support self-improvement and habit formation, I would be happy to deliver it to you. Please feel free to ask if you have any questions. Thank you for your consideration ✨