Basket-making is an ancient craft that involves weaving together materials such as OSIER and istle to create functional and decorative baskets. OSIER is a type of willow tree with long, flexible branches that are often used in basket-making. Istle is a type of fiber from the agave plant, which is also used in basket-making. Both OSIER and istle are strong and durable materials that can be woven together to create beautiful and practical baskets.