I saw the recommendations from a link I the sidebar and am going to start on those, but am also wondering if there's any recommendations for my more specific interest of the relationship between Israel and Iran.
The most significant book about contemporary Iran-Israel relations is Trita Parsi's book,
Treacherous Alliance: The Secret Dealings of Israel, Iran, and the United States
http://www.barnesandnoble.com/w/treacherous-alliance-trita-parsi/1117391793?ean=9780300143119