Zara is a Spanish fast fashion retailer known for its rapid production cycles that allow it to react quickly to new fashion trends. It has over 2000 stores globally and produces around 450 million items per year through a vertically integrated supply chain model. Key aspects of Zara's business model include small production runs that can be turned around in 2-3 weeks, frequent communication between stores and designers, and a highly responsive supply chain that can deliver new shipments globally within 24-48 hours. This approach allows Zara to offer new fashion items to customers much faster than competitors and keep inventory turnover high.