{"identifiers": {"librarything": ["13383"], "goodreads": ["100162"]}, "title": "Flow", "subtitle": "The Psychology of Optimal Experience", "authors": [{"key": "/authors/OL33636A"}], "publish_date": "March 1991", "publishers": ["HarperCollins Publishers"], "physical_format": "Hardcover", "subjects": ["Personal Growth - Happiness", "Psychology"], "isbn_13": ["9780060920777"], "languages": [{"key": "/languages/eng"}], "isbn_10": ["0060920777"], "oclc_numbers": ["228093202"], "type": {"key": "/type/edition"}, "first_sentence": {"type": "/type/text", "value": "TWENTY-THREE HUNDRED YEARS AGO Aristotle concluded that, more than anything else, men and women seek happiness."}, "source_records": ["amazon:0060920777"], "key": "/books/OL9239174M", "number_of_pages": 320, "works": [{"key": "/works/OL278571W"}], "latest_revision": 8, "revision": 8, "created": {"type": "/type/datetime", "value": "2008-04-30T09:38:13.731961"}, "last_modified": {"type": "/type/datetime", "value": "2026-03-26T05:13:02.230129"}}