{"product_id":"9781613420935","title":"The Gates of Knowledge","description":"Philosopher\/Mystic Rudolf Steiner offers an enlightened look at the quest for spiritual improvement in this classic work. Includes: The Four Modes of Knowledge; The Occult Functions of Sleep; The Pupil and His Teacher; Inspiration; Tuition; Philosophy and Theosophy. This is a photographic reproduction of the 1912 edition of this work.","brand":"Cornerstone Book Publishers","offers":[{"title":"Default Title","offer_id":47049882370288,"sku":"9781613420935","price":15.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781613420935_p0.jpg?v=1763848029","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781613420935","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}