{"isbn_13": ["9781592286744"], "physical_format": "Hardcover", "subtitle": "Techniques and Philosophies of Four Legendary Trainers", "weight": "2.1 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["The Lyons Press"], "number_of_pages": 160, "last_modified": {"type": "/type/datetime", "value": "2008-09-06 09:36:18.745359"}, "id": 12001169, "first_sentence": {"type": "/type/text", "value": "Klaus Balkenhol entered the dressage world in 1977, when he made a phone call to the German National Equestrian Center in Warendorf and asked to be included in a training session for Grand Prix riders."}, "isbn_10": ["1592286747"], "publish_date": "July 1, 2006", "key": "/b/OL8861501M", "authors": [{"key": "/a/OL1498333A"}], "title": "Dressage Masters", "type": {"key": "/type/edition"}, "subjects": ["Riding & horsemanship", "Equestrian Sports", "Sports & Recreation", "Sports", "Equestrian", "Sports & Recreation / Equestrian"], "physical_dimensions": "10.9 x 8.9 x 0.7 inches", "revision": 2}