I purchased this last year to take the ECG certification exam, and I passed! This is the official problem book essential for those taking the ECG certification exams for levels 2 and 3. Based on past exam trends, it completely covers important terms and question formats. It's easy to understand with answers and explanations. The latest revised 3rd edition includes new questions. - Title: ECG Certification Official Problem Book & Guide - Edition: Revised 3rd Edition - Target Levels: Level 2/3 - Price: 2800 yen - Number of Questions: 111 questions Thank you for viewing. I used it a few times, but there are no markings, and it's in good condition. It still has the tag. Please understand that there may be some minor scratches or wear from being stored on a bookshelf.