Issue 21 of the Sharjah Antiquities Yearbook is a yearbook in Arabic and English, concerned with publishing the results of archaeological excavations and research in the Emirate of Sharjah, and is issued by the Sharjah Antiquities Authority of the Sharjah Government. This is the first edition of Issue 21, which was issued in 2023. This issue contains seven reports: 1 – Results of a study of No. Of the cylinder seals that were recently found in some archaeological sites in the Emirate of Sharjah, and their number reached seven seals that were discovered in the sites of Tell Abraq, Maliha, and Kalba 2 – Results of the excavation work of the Austrian archaeological mission in Kalba for the year 2020 3 – Results of the excavation work of the last season of the year 2022, and it was reached Important results about the construction of trenches and their dimensions in the Early Bronze Age and measuring the effects of human settlement in the area surrounding this settlement 4- A detailed presentation to study the results of the excavation work carried out by the Japanese mission in partnership with the Sharjah Antiquities Authority in Dibba Al-Hisn Fort during the years 2020-2022, 5 and 6 – Results Excavation work carried out by the Belgian archaeological excavation mission at the Mleiha site, where a variety of human burials were discovered and documented. 7- The results of the German archaeological mission’s excavations in the last season at the beginning of the current year 2023. These results are considered the first evidence of human settlement in the southeast region. Arabia so far.