Infrastructure as Code (IaC) is a method of managing and provisioning computing infrastructure through machine-readable definition files, rather than physical hardware configuration or interactive configuration tools. Coursera's IaC catalogue teaches you how to model and set up your IT infrastructure in an automated, repeatable way. You'll learn about best practices for writing and managing code for infrastructure, how to use IaC tools such as Ansible, Chef, Puppet, and Terraform, and the principles of continuous integration and continuous delivery. You'll also explore how to leverage IaC for cloud management, testing, and secure, scalable deployments. With this knowledge, you can ensure consistent operations and increase efficiency while reducing potential errors and system downtime in your IT environment.