Edited with the support of three institutions (the Uzbek National Society of Young Scientists, the Khiva “Ichan-Kala” State Reserve Museum, the French Institute for Central Asian Studies), these two books feature unpublished documents discovered in Uzbek collections. The facsimile reproduction is excellent. While the first volume satisfies itself with codicological details and content descriptions for each item (the last seven yarliks are transcribed though), the second volume provides the transliteration in Arabic characters and a translation into Russian. This painstaking work has been undertaken by the author with the assistance of several young researchers in Uzbekistan. The Khivan documents cover a long period (from 1665 to 1908); providing new quantitative data, they complete the image of the administrative system as well as of the juridical organisation depicted in previously published sources. Yet, there is much to do (statistics in particular) before we have at our disposal a clear historical picture. As for the Kubrawi texts, the recent discovery of manuscripts preserved in public and private archive collections improves our knowledge of the late history of the tariqa ― notably, the identification of three successive figures commonly named Husayn Khwarazmi. The waqf deeds show the socio-religious role played by Kubrawi institutions (mosques, khanaqahs, mazars) until the eighteenth century. Both qazi documents and waqf certificates shed light on the economic life of the Khanate of Khiva.