{"covers": [398390], "first_publish_date": "July 20, 2001", "key": "/works/OL3333336W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL540073A"}}], "subjects": ["Tai chi", "Exercise", "Physical fitness", "Health"], "title": "Teach Yourself Tai Chi", "type": {"key": "/type/work"}, "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2009-12-10T03:18:53.366018"}, "last_modified": {"type": "/type/datetime", "value": "2020-12-08T16:45:36.114470"}}