Kitāb fī istīʻāb al-wujūh al-mumkinah fī ṣanʻat al-asṭurlāb. [كتاب في استيعاب الوجوه الممكنة في صنعة الاسطرلاب]

This is an Arabic-language treatise that details the construction, operation, and applications of the astrolabe—an essential instrument for medieval astronomers.

With technical illustrations and thorough instructions, the manuscript reflects the sophistication of Islamic scientific thought.

It was used both as a practical manual and an educational text for students of astronomy.