- The AWS Root User: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_root-user.html
- AWS Security Credentials: https://docs.aws.amazon.com/general/latest/gr/aws-security-credentials.html
- IAM Service Limits: https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_iam-limits.html
- IAM Policies and Permissions: https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html
- IAM Best Practices: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_root-user.html