diff --git a/README.md b/README.md
index 0093243..7a12c56 100644
--- a/README.md
+++ b/README.md
@@ -3,4 +3,8 @@ TODO
 
 
 ## Resources
-https://www.sohamkamani.com/javascript/enums/
\ No newline at end of file
+### JavaScript enumeration
+https://www.sohamkamani.com/javascript/enums/
+https://dmitripavlutin.com/javascript-enum/#comments
+https://stackoverflow.com/questions/43000451/javascript-es6-enums-inside-classes-used-outside-like-a-static-enum
+https://2ality.com/2020/01/enum-pattern.html
diff --git a/index.js b/index.js
index 2473111..65500f7 100644
--- a/index.js
+++ b/index.js
@@ -1,12 +1,16 @@
+// Node modules
+const inquirer = require("inquirer");
+const path = require("path");
+const fs = require("fs");
+
 // Classes
+const Employee = require("./lib/Employee");
 const Manager = require("./lib/Manager");
 const Engineer = require("./lib/Engineer");
 const Intern = require("./lib/Intern");
 
-// Node modules
-const inquirer = require("inquirer");
-const path = require("path");
-const fs = require("fs");
+// Enumerations
+const EmployeeTypeEnum = require("./lib/EmployeeTypeEnum");
 
 const OUTPUT_DIR = path.resolve(__dirname, "output");
 const outputPath = path.join(OUTPUT_DIR, "team.html");
diff --git a/lib/Employee.js b/lib/Employee.js
index 16eb635..fd06885 100644
--- a/lib/Employee.js
+++ b/lib/Employee.js
@@ -1,8 +1,11 @@
+const EmployeeTypeEnum = require("./EmployeeTypeEnum");
+
 class Employee {
   constructor(name, id, email) {
     this.name = name;
     this.id = id;
     this.email = email;
+    this.role = EmployeeTypeEnum.employee;
   }
 
   getName() {
@@ -18,7 +21,7 @@ class Employee {
   }
 
   getRole() {
-    return "Employee";
+    return this.role.toString();
   }
 }
 
diff --git a/lib/EmployeeTypeEnum.js b/lib/EmployeeTypeEnum.js
new file mode 100644
index 0000000..f4decc1
--- /dev/null
+++ b/lib/EmployeeTypeEnum.js
@@ -0,0 +1,16 @@
+class EmployeeTypeEnum {
+  static employee = new EmployeeTypeEnum("Employee");
+  static manager = new EmployeeTypeEnum("Manager");
+  static engineer = new EmployeeTypeEnum("Engineer");
+  static intern = new EmployeeTypeEnum("Intern");
+
+  constructor(name) {
+    this.name = name;
+  }
+
+  toString() {
+    return `EmployeeTypeEnum.${this.name}`;
+  }
+}
+
+module.exports = EmployeeTypeEnum;
diff --git a/lib/Engineer.js b/lib/Engineer.js
index d42480a..cb7fd23 100644
--- a/lib/Engineer.js
+++ b/lib/Engineer.js
@@ -1,9 +1,11 @@
+const EmployeeTypeEnum = require("./EmployeeTypeEnum");
 const Employee = require("./Employee");
 
 class Engineer extends Employee {
   constructor(name, id, email, github) {
     super(name, id, email);
     this.github = github;
+    this.role = EmployeeTypeEnum.engineer;
   }
 
   getGithub() {
@@ -11,7 +13,7 @@ class Engineer extends Employee {
   }
 
   getRole() {
-    return "Engineer";
+    return this.role.toString();
   }
 }
 
diff --git a/lib/Intern.js b/lib/Intern.js
index 708dfd8..c51fc89 100644
--- a/lib/Intern.js
+++ b/lib/Intern.js
@@ -1,9 +1,11 @@
+const EmployeeTypeEnum = require("./EmployeeTypeEnum");
 const Employee = require("./Employee");
 
 class Intern extends Employee {
   constructor(name, id, email, school) {
     super(name, id, email);
     this.school = school;
+    this.role = EmployeeTypeEnum.intern;
   }
 
   getSchool() {
@@ -11,7 +13,7 @@ class Intern extends Employee {
   }
 
   getRole() {
-    return "Intern";
+    return this.role.toString();
   }
 }
 
diff --git a/lib/Manager.js b/lib/Manager.js
index ae24921..512dc12 100644
--- a/lib/Manager.js
+++ b/lib/Manager.js
@@ -1,9 +1,11 @@
+const EmployeeTypeEnum = require("./EmployeeTypeEnum");
 const Employee = require("./Employee");
 
 class Manager extends Employee {
   constructor(name, id, email, officeNumber) {
     super(name, id, email);
     this.officeNumber = officeNumber;
+    this.role = EmployeeTypeEnum.manager;
   }
 
   getOfficeNumber() {
@@ -11,7 +13,7 @@ class Manager extends Employee {
   }
 
   getRole() {
-    return "Manager";
+    return this.role.toString();
   }
 }