I have read this book very carefully since I bought it, and it is in very good condition. However, it is a used item, so please understand that there may be minor scratches and stains. For your reference, a new copy on Amazon costs approximately 17,000 yen. https://www.amazon.co.jp/dp/0387310738 This book is highly regarded for university/graduate school classes, research purposes, and self-study. It is especially recommended for those who want to thoroughly understand the fundamental theories before deep learning. PRML Bishop Machine Learning Probabilistic Models Bayesian Learning Pattern Recognition English Original