Book Review: Empire, Islam, and Politics of Difference. Ottoman Rule in Yemen, written by Thomas Kuehn, 2011; Imām Yaḥyā Ḥamīd ad-Dīn und die Juden von Ṣanʿāʾ (1904–1948). Die Dimension von Schutz (Dhimma) in den Dokumenten der Sammlung des Rabbi Sālim b. Saʿīd al-Ǧamal, written by Kerstin Hünefeld, 2010; The Hadramawt Documents, 1904–51. Family Life and Social Customs under the Last Sultans, written by Mikhail Rodionov and Hanne Schönig, 2011