{"identifiers": {"goodreads": ["117100"], "librarything": ["13383"]}, "title": "Flow", "subtitle": "The Psychology of Optimal Experience", "authors": [{"key": "/authors/OL33636A"}], "publish_date": "1990", "publishers": ["Quality Paperback Club"], "languages": [{"key": "/languages/eng"}], "weight": "12 ounces", "isbn_13": ["9780965019606"], "physical_format": "Hardcover", "isbn_10": ["0965019608"], "type": {"key": "/type/edition"}, "physical_dimensions": "8.1 x 5.7 x 1.1 inches", "source_records": ["amazon:0965019608"], "key": "/books/OL8528187M", "works": [{"key": "/works/OL278571W"}], "latest_revision": 8, "revision": 8, "created": {"type": "/type/datetime", "value": "2008-04-30T06:33:27.187047"}, "last_modified": {"type": "/type/datetime", "value": "2026-05-03T17:42:50.451030"}}