Written around 891 CE, this work is considered one of the oldest and most vital sources of early Islamic geography. Unlike modern dry gazetteers, Al-Ya'qubi’s "literary geography" weaves together ethnography, local myths, and political structures.

You can find fragments and related studies on Internet Archive and academic publishers like Brill .

The search for a typically leads to two primary medieval Arabic works of immense historical value: the geographical treatise by Al-Ya'qubi and the historical account of conquests by Al-Baladhuri . 1. Kitab al-Buldan by Al-Ya'qubi (The Book of Countries)

It covers vast territories including Iran, Afghanistan, Iraq, Egypt, and the Maghreb. It is particularly noted for its detailed description of trade routes and Central Asian cities like Samarkand and Bukhara.

2. Kitab Futuh al-Buldan by Al-Baladhuri (The Conquest of the Countries)

For a modern English translation, scholars point to The Works of Ibn Wāḍiḥ al-Yaʿqūbī: An English Translation , a three-volume set edited by Matthew S. Gordon and others, which includes the complete Kitab al-Buldan .