    :recommendation/necessary true
    :recommendation/description "Seven Web Frameworks in Seven Weeks is must recommendation for software engineer specialization, because... //TBD @alexpetrov"}
   {:recommendation/specialization [:specialization/id "software_engineer"]
+   :recommendation/media [:media/id "thfsl"]
+   :recommendation/id "software_engineer_thfsl"
+   :recommendation/priority 600
+   :recommendation/necessary false
+   :recommendation/description "Thinking Fast and Slow is optional recommendation for software engineer specialization, because... //TBD @alexpetrov"}
+  {:recommendation/specialization [:specialization/id "software_engineer"]
    :recommendation/media [:media/id "7ml7w"]
    :recommendation/id "software_engineer_7ml7w"
    :recommendation/priority 100

   :media/isbn "ISBN: 978-1-93778-563-5"
   :media/year 2013
   :media/author [[:author/id "jack_moffitt"][:author/id "fred_daoud"]]}
  {:media/id "about_face"
   :media/type :media.type/book
   :media/title "About Face:"

   :author/name "Fred Daoud"}
  {:author/id "ian_dees"
   :author/name "Ian_Dees"}
  {:author/id "daniel_kahneman"
   :author/name "Daniel Kahneman"}
  ]

 [{:media/id "pragmatic_programmer"
