    :media/year 2013
    :media/url "http://www.horstmann.com/corejava.html"
    :media/author [[:author/id "cay_horstmann"][:author/id "gary_cornell"]]}
+
+  {:media/id "wgjd"
+   :media/type :media.type/book
+   :media/title "The Well-Grounded Java Developer"
+   :media/subtitle "Vital techniques of Java 7 and polyglot programming"
+   :media/essential true
+   :media/experience 1
+   :media/isbn "ISBN: 9781617290060"
+   :media/year 2012
+   :media/url "http://www.manning.com/evans/"
+   :media/author [[:author/id "benjamin_evans"][:author/id "martijn_verburg"]]}
 ;; Java Books end
 
 

   :author/name "Cay Horstmann"}
  {:author/id "gary_cornell"
   :author/name "Gary Cornell"}
  ]

 [{:media/id "pragmatic_programmer"

   :media/year 2010
   :media/author [[:author/id "daniel_kahneman"]]}
;; Java Books

  {:media/id "jp24ht"
   :media/type :media.type/book
   :media/title "Java Programming"
