    :recommendation/priority 700
    :recommendation/necessary false
    :recommendation/description "Patterns of Enterprise Application Architecture is optional recommendation for developer specialization, because... //TBD @alexpetrov"}
+  {:recommendation/specialization [:specialization/id "developer"]
+   :recommendation/media [:media/id "prclj"]
+   :recommendation/id "developer_prclj"
+   :recommendation/priority 600
+   :recommendation/necessary false
+   :recommendation/description "Programming Clojure is optional recommendation for developer specialization, because... //TBD @alexpetrov"}
 ]
 ]

   :author/name "Joshua Kerievsky"}
  {:author/id "michael_feathers"
   :author/name "Michael Feathers"}
;;Michael Feathers
]

 [{:media/id "pragmatic_programmer"
   :media/type :media.type/book

   :media/experience 1
   :media/isbn "ISBN-13: 978-0321127426 ISBN-10: 0321127420"
   :media/author [[:author/id "martin_fowler"]]}
  {:media/id "prclj"
   :media/type :media.type/book
   :media/title "Programming Clojure (2nd edition)"
   :media/essential true
   :media/experience 2
   :media/isbn "ISBN: 978-1-93435-686-9"
   :media/author [[:author/id "stuart_halloway"][:author/id "aaron_bedra"]]}
]
;; Media-relationships
 [  {:media.relationship/from [:media/id "ilsd_ru"]
