Some 50 titles of his works are dedicated to mathematics and astronomy (including astrology. He has been considered the last creative mathematician in the Maghrib; he approached new problems and gave original solutions. His works were extremely popular, and inspired an enormous number of commentaries, which were still being written until the beginning of the 20th century. In the field of astronomy, Ibn al-Bannā’ (following the Andalusian tradition represented directly or indirectly by the Toledan astronomer Zārqālī) wrote short works on the two varieties of universal astrolabes (shakkāziyya and zarqāliyya) as well a zīj entitled Minhāj al-ṭālib fī ta`dīl al-kawākib (using the unfinished zīj of Ibn Isḥāq); there were at least 3 commentaries on this popular work, and it was still in use in the 19th c. Ibn al-Bannā’ also  prepared a summary of his Minhāj entitled al-Yasāra fī taqwīm al-kawākib al-sayyāra, most likely for popular astrologers. This was summarized further in his al-Ishāra fī ikhtiṣār al-Yasāra. The Yasāra was also the subject of commentaries, adaptations, and corrections of defects such as that written by Ibn Qunfūdh al-Qusanṭīnī (1339–1407). Ibn al-Bannā’ also wrote: the Kitāb fī al-anwā’, a book on the pre-Islamic Arabic calendar system and meteorological predictor based upon the heliacal risings and acronychal settings; was interested in the problems of timekeeping applied to Islamic worship and wrote short works, such as his Qānūn fī ma`rifat al-awqāt bi’l-ḥisāb;  a short report on the visibility of the New Moon of Ramaḍān of the year 1301; 2 short texts on the qibla; and.a non-extant work on astrology entitled Radd `alā al-aḥkām al-nujūmiyya ( (ca 1290-1301). [BEA, J. Samsó]