diff --git a/README.md b/README.md
index f066cf6..3eeb429 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,6 @@
   - [💻 Getting Started ](#-getting-started-)
     - [Prerequisites](#prerequisites)
     - [Setup](#setup)
-    - [🚀 Presentation Video](#Video)
     - [Install](#install)
     - [Usage](#usage)
   - [👥 Author ](#-author-)
@@ -49,6 +48,7 @@ Blog-app is a fully functioning website that show the list of posts and empower
 
 - **Create Database named Blog_app_development**
 - **Create tables by migration files**
+- **processing data in models**
 
 <p align="right">(<a href="#readme-top">back to top</a>)</p>
 
@@ -107,7 +107,6 @@ it will install the required gemfile for running the project
 
 ## 🔭 Future Features <a name="future-features"></a>
  - Validations and Model specs.
- - Processing data in models.
  - Controllers.
  - Controllers specs.
  - Views.
diff --git a/app/models/comment.rb b/app/models/comment.rb
new file mode 100644
index 0000000..099f191
--- /dev/null
+++ b/app/models/comment.rb
@@ -0,0 +1,8 @@
+class Comment < ApplicationRecord
+  belongs_to :post
+  belongs_to :user
+
+  def update_post_comments_counter
+    post.update(comments_counter: post.comments.count)
+  end
+end
diff --git a/app/models/like.rb b/app/models/like.rb
new file mode 100644
index 0000000..33193b3
--- /dev/null
+++ b/app/models/like.rb
@@ -0,0 +1,8 @@
+class Like < ApplicationRecord
+  belongs_to :post
+  belongs_to :user
+
+  def update_post_likes_counter
+    post.update(likes_counter: post.likes.count)
+  end
+end
diff --git a/app/models/post.rb b/app/models/post.rb
new file mode 100644
index 0000000..359579c
--- /dev/null
+++ b/app/models/post.rb
@@ -0,0 +1,13 @@
+class Post < ApplicationRecord
+  belongs_to :author, class_name: 'User'
+  has_many :comments, foreign_key: 'post_id'
+  has_many :likes, foreign_key: 'post_id'
+
+  def update_user_posts_counter
+    author.update(posts_counter: author.posts.count)
+  end
+
+  def recent_comments(limit = 5)
+    comments.order(created_at: :desc).limit(limit)
+  end
+end
diff --git a/app/models/user.rb b/app/models/user.rb
new file mode 100644
index 0000000..66cd914
--- /dev/null
+++ b/app/models/user.rb
@@ -0,0 +1,9 @@
+class User < ApplicationRecord
+  has_many :posts, foreign_key: 'author_id'
+  has_many :comments, foreign_key: 'user_id'
+  has_many :likes, foreign_key: 'user_id'
+
+  def recent_posts(limit = 3)
+    posts.order(created_at: :desc).limit(limit)
+  end
+end