Those list are the most valuable documents that you must know if you want to be cloud engineer through AWS
EC2 Guide: Get started with Amazon EC2 – Amazon Elastic Compute Cloud
S3 Guide: What is Amazon S3? – Amazon Simple Storage Service
VPC Guide: What is Amazon VPC? – Amazon Virtual Private Cloud
Route 53 Guide: What is Amazon Route 53? – Amazon Route 53
RDS Guide:What is Amazon Relational Database Service (Amazon RDS)? – Amazon Relational Database Service
IAM Guide:What is IAM? – AWS Identity and Access Management
ELB Guide: What is Elastic Load Balancing? – Elastic Load Balancing
Auto Scaling Guide: What is Amazon EC2 Auto Scaling? – Amazon EC2 Auto Scaling
Lambda Guide: What is AWS Lambda? – AWS Lambda
DynamoDB Guide: What is Amazon DynamoDB? – Amazon DynamoDB
EKS Guide: What is Amazon EKS? – Amazon EKS
SQS Guide: What is Amazon Simple Queue Service? – Amazon Simple Queue Service
SNS Guide: What is Amazon SNS? – Amazon Simple Notification Service
CloudWatch Guide: What is Amazon CloudWatch? – Amazon CloudWatch
CloudFront Guide: What is Amazon CloudFront? – Amazon CloudFront
CloudTrail Guide: What Is AWS CloudTrail? – AWS CloudTrail
EventBridge Guide: What Is Amazon EventBridge? – Amazon EventBridge
Billing and Cost Management Guide: What is AWS Billing and Cost Management? – AWS Billing