This document discusses edge services from Amazon Web Services (AWS) as a critical component of AWS infrastructure. It defines edge services as services like AWS CloudFront, AWS Shield, AWS WAF, and Amazon Route 53 that control access to core application resources through the edge to secure, scale, and optimize applications. The document reviews the benefits of edge services like improved performance, security, and cost optimization. It provides overviews of specific edge services like CloudFront, Shield, WAF, and Route 53 and how they can be used to start leveraging edge services.