Cloudflare's serverless platform boils down to six essential primitives—Workers, Durable Objects, R2, D1, Workers KV, and Queues—each optimized for specific edge challenges like state management, global distribution, and async processing. This visual explainer clarifies their behaviors, trade-offs, and ideal use cases, helping developers compose scalable applications without infrastructure headaches. Mastering these unlocks truly global, low-latency apps at the edge.