A lot of the paintings are really cool. There's been debate and speculation among art historians about Islamic art influencing the Renaissance. Different painting techniques could have originated in the Middle East before getting exported back to Europe during the Crusades.

One piece of evidence for this is with etching. The etching of metal was first used by Arabs to mark their equipment so if they died, their stuff could be taken back to their families. Europeans learned of this technique and applied it to metal plates. Copper is much more durable than woodblocks and you can make more copies before the master gets damaged or destroyed. This led to more effective printing because crews could work faster not worrying about damaging their tools.