AWS Lambda is a serverless Function as a Service (FaaS) that offers scalable, cost-effective deployment solutions by allowing resources to scale to zero when not in use. This post guides users through deploying a simple Lambda using AWS CloudFormation, including setting up essential resources like log groups and IAM roles for monitoring purposes. It extends to a more intricate example where a Lambda is deployed within a Virtual Private Cloud (VPC) that incorporates both private and public subnets, enabling Lambda to interact with resources like databases and EC2 instances. The deployment involves configuring network access through security groups, demonstrating how to manage network traffic and resource interactions within a VPC. The article emphasizes the simplicity of deploying basic Lambdas and the flexibility of configuring more complex deployments requiring VPC access, providing readers with practical insights into AWS infrastructure setup.