On May 15, 2018, Harper published Halevi's book "Letters to My Palestinian Neighbor". In the book, Halevi "open a dialogue with an imagined Palestinian neighbor... He frames his chapters as a series of letters to that neighbor that include both concise, balanced histories—of such topics as the history of modern Zionism and the occupation of the West Bank and Gaza—and his own memories of growing up an American Jew afraid that Israel would be destroyed in 1967, moving to Israel, and how his 'romance with the settlement movement ended.'" Halevi says he is seeking "to start the first public conversation between an Israeli writer and our neighbors about who we are, why we see ourselves as indigenous to this land, and what is our shared future in the region." He is making "Letters to My Palestinian Neighbor" available for free download in Arabic and he has invited Palestinians, Arabs, and Muslims to write to him in response to the book in order to initiate a dialogue. He "may publish the exchanges as a sequel."