Vitaly Naumkin, Ph.D. (1972), Dr. Sc. (1981) is the director of the Institute for Oriental Studies of the Russian Academy of Sciences. He has published books and articles on the Arab and Islamic world in ancient and modern times. Fieldwork researcher on Soqotra since 1974.Leonid Kogan, Ph.D. (2001), is the head of the Ancient Near Eastern department of the Institute for Oriental and Classical studies, Russian State University for the Humanities. His publications deal with comparative Semitic grammar and etymology. Fieldwork researcher on Soqotra since 2010. Isa Gumaan al-Daarhi, a primary school teacher in his native tribal area Daarho.Ahmed Isa al-Daarhi, a bachelor in English, the Soqotra branch of the University of HadramawtDmitry Cherkashin is a lecturer in Classical Arabic in the Institute for Oriental and Classical studies, Russian State University for the Humanities. Fieldwork researcher on Soqotra since 2010. Maria Bulakh, Ph.D. (2005), is a lecturer in Ethiopian languages in the Institute for Oriental and Classical studies, Russian State University for the Humanities. She has published numerous articles on grammar and lexicon of Geez, modern Ethiopian languages and Semitic in general. Ekaterina Vizirova is a lecturer in Ancient Near Eastern languages in the Institute for Oriental and Classical studies, Russian State University for the Humanities. Fieldwork researcher on Soqotra since 2012.

We have here a magnificent book, a masterpiece of linguistic and cultural research, devoted to one of the lesser-known living Semitic languages. - Antoine Lonnet in: Orientalistische Literaturzeitung 2017.