Which is a craft commonly practised in Northern Nigeria?

Leather work is a craft commonly practised in Northern Nigeria, particularly among the Hausa and Fulani peoples. The region has a long tradition of leather tanning, dyeing, and crafting, centred in cities such as Kano, Sokoto, and Zaria. Products include decorated bags, pouches, shoes, sandals, saddles, and ornamental items. The distinctive red-dyed goatskin leather from this region was historically known in European trade as "Morocco leather" due to its transit through North African trade routes.

Glass blowing, stone mosaic, and stained glass are not crafts traditionally associated with Northern Nigeria. Glass blowing developed primarily in the Middle East and Europe. Stone mosaic has its roots in ancient Mediterranean civilisations. Stained glass is most strongly associated with European church architecture. While these crafts exist in various parts of the world, none of them represents a traditional Northern Nigerian craft tradition.