{"product_id":"9781440121975","title":"The Master Keys: A Painter's Treatise on the Pictorial Technique of Oil Painting","description":"Painting is not a vagabond's craft. From the 15th through the 17th Centuries, painters studied past techniques in order to evaluate the possibility of improvement through a process of logical progression. This book is divided into chapters (Keys) that explain each a major step forward in technique and propose the master to whom credit should be given.","brand":"iUniverse, Incorporated","offers":[{"title":"Default Title","offer_id":48530911854833,"sku":"9781440121975","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/5433\/7265\/files\/9781440121975_p0.jpg?v=1786299595","url":"https:\/\/shop.barnesandnoble.com\/products\/9781440121975","provider":"Barnes \u0026 Noble","version":"1.0","type":"link"}