I have approximately 40 Heating, Ventilation, Air Conditioning & Refrigeration Journals and all of them are in EXCELLENT CONDITION. My journals are current (up to April 2014). Choose 1, 10, 20 or however many journals you want to purchase. Choose whichever journals you want to purchase. Feel free to ask me any questions you want about any of the journals. Journals can range anywhere from 50 to 150 pages. That's a lot of useful and up-to-date information packed in each journal for only $5 each! And they are all in excellent shape!