diff --git a/ch2/ansible/create_ec2_instance_playbook.yml b/ch2/ansible/create_ec2_instance_playbook.yml
index 6959f6a..3c400fd 100644
--- a/ch2/ansible/create_ec2_instance_playbook.yml
+++ b/ch2/ansible/create_ec2_instance_playbook.yml
@@ -2,7 +2,7 @@
   hosts: localhost
   gather_facts: no
   environment:
-    AWS_REGION: us-east-2                              
+    AWS_REGION: us-east-2
   tasks:    
     - name: Create security group                      
       amazon.aws.ec2_security_group:
diff --git a/ch2/ansible/inventory.aws_ec2.yml b/ch2/ansible/inventory.aws_ec2.yml
index 43b2540..8f007e3 100644
--- a/ch2/ansible/inventory.aws_ec2.yml
+++ b/ch2/ansible/inventory.aws_ec2.yml
@@ -1,6 +1,6 @@
 plugin: amazon.aws.aws_ec2
 regions:
-  - us-east-2         
+  - us-east-2
 keyed_groups:
   - key: tags.Ansible 
 leading_separator: '' 
diff --git a/ch2/bash/deploy-ec2-instance.sh b/ch2/bash/deploy-ec2-instance.sh
index f38fd5e..fbc2de9 100644
--- a/ch2/bash/deploy-ec2-instance.sh
+++ b/ch2/bash/deploy-ec2-instance.sh
@@ -6,31 +6,27 @@ export AWS_DEFAULT_REGION="us-east-2"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 user_data=$(cat "$SCRIPT_DIR/../../ch/ec2-user-data-script/user-data.sh")
 
-echo "Creating security group"
 security_group_id=$(aws ec2 create-security-group \
-  --group-name "sample-app-script" \
+  --group-name "sample-app" \
   --description "Allow HTTP traffic into the sample app" \
   --output text \
   --query GroupId)
 
-echo "Adding rule to allow inbound requests on port 80 to security group"
 aws ec2 authorize-security-group-ingress \
   --group-id "$security_group_id" \
   --protocol tcp \
   --port 80 \
   --cidr "0.0.0.0/0" > /dev/null
 
-echo "Creating EC2 instance with Amazon Linux 2003 AMI"
 instance_id=$(aws ec2 run-instances \
   --image-id "ami-0900fe555666598a2" \
   --instance-type "t2.micro" \
   --security-group-ids "$security_group_id" \
   --user-data "$user_data" \
-  --tag-specifications 'ResourceType=instance,Tags=[{Key=Name,Value=sample-app-script}]' \
+  --tag-specifications 'ResourceType=instance,Tags=[{Key=Name,Value=sample-app}]' \
   --output text \
   --query Instances[0].InstanceId)
 
-echo "Getting public IP address of EC2 instance"
 public_ip=$(aws ec2 describe-instances \
   --instance-ids "$instance_id" \
   --output text \
diff --git a/ch2/packer/sample-app.pkr.hcl b/ch2/packer/sample-app.pkr.hcl
index 0b407cd..ebea56b 100644
--- a/ch2/packer/sample-app.pkr.hcl
+++ b/ch2/packer/sample-app.pkr.hcl
@@ -7,28 +7,24 @@ packer {
   }
 }
 
-source "amazon-ebs" "amazon_linux" {
+source "amazon-ebs" "amazon_linux" {                  
   ami_name        = "sample-app-packer-${uuidv4()}"
-  ami_description = "An Amazon Linux 2023 AMI that has a Node.js sample app installed."
+  ami_description = "Amazon Linux 2023 AMI with a Node.js sample app."
   instance_type   = "t2.micro"
   region          = "us-east-2"
   source_ami      = "ami-0900fe555666598a2"
   ssh_username    = "ec2-user"
 }
 
-build {
-  sources = [
-    "source.amazon-ebs.amazon_linux"
-  ]
+build {                                               
+  sources = ["source.amazon-ebs.amazon_linux"]
 
-  
-  provisioner "file" {
+  provisioner "file" {                                
     source      = "app.js"
     destination = "/home/ec2-user/app.js"
   }
 
-  
-  provisioner "shell" {
+  provisioner "shell" {                               
     inline = [
       "curl -fsSL https://rpm.nodesource.com/setup_21.x | sudo bash -",
       "sudo yum install -y nodejs"
diff --git a/ch2/tofu/ec2-instance/main.tf b/ch2/tofu/ec2-instance/main.tf
index c60445c..a641e80 100644
--- a/ch2/tofu/ec2-instance/main.tf
+++ b/ch2/tofu/ec2-instance/main.tf
@@ -1,13 +1,13 @@
-provider "aws" {
+provider "aws" {                                               
   region = "us-east-2"
 }
 
-resource "aws_security_group" "sample_app" {
+resource "aws_security_group" "sample_app" {                   
   name        = "sample-app-tofu"
   description = "Allow HTTP traffic into the sample app"
 }
 
-resource "aws_security_group_rule" "allow_http_inbound" {
+resource "aws_security_group_rule" "allow_http_inbound" {      
   type              = "ingress"
   protocol          = "tcp"
   from_port         = 8080
@@ -16,8 +16,8 @@ resource "aws_security_group_rule" "allow_http_inbound" {
   cidr_blocks       = ["0.0.0.0/0"]
 }
 
-resource "aws_instance" "sample_app" {
-  ami                    = var.ami_id 
+resource "aws_instance" "sample_app" {                         
+  ami                    = var.ami_id                          
   instance_type          = "t2.micro"
   vpc_security_group_ids = [aws_security_group.sample_app.id]
   user_data              = file("${path.module}/user-data.sh") 
diff --git a/ch2/tofu/ec2-instance/variables.tf b/ch2/tofu/ec2-instance/variables.tf
index 992412f..9bf4379 100644
--- a/ch2/tofu/ec2-instance/variables.tf
+++ b/ch2/tofu/ec2-instance/variables.tf
@@ -1,4 +1,4 @@
 variable "ami_id" {
-  description = "The ID of the AMI to run. Should be built from the Packer template in the packer folder."
+  description = "The ID of the AMI to run."
   type        = string
 }
\ No newline at end of file