diff --git a/client/src/pages/CommunityPage.tsx b/client/src/pages/CommunityPage.tsx
index fffe686..56a8857 100644
--- a/client/src/pages/CommunityPage.tsx
+++ b/client/src/pages/CommunityPage.tsx
@@ -16,6 +16,7 @@ import {
   ModalFooter,
   useDisclosure,
   Spinner,
+  User,
 } from "@nextui-org/react";
 import config from "../config";
 import instance from "../security/http";
@@ -28,7 +29,8 @@ import {
   XMarkIcon,
 } from "../icons";
 import { useNavigate } from "react-router-dom";
-// import { retrieveUserInformation } from "../security/users";
+import { retrieveUserInformationById } from "../security/usersbyid";
+import { number } from "yup";
 // import UserPostImage from "../components/UserPostImage";
 
 interface Post {
@@ -37,17 +39,29 @@ interface Post {
   content: string;
   tags: string;
   id: number;
+  userId: number;
 }
 
+type User = {
+  id: number;
+  firstName: string;
+  lastName: string;
+};
+
 export default function CommunityPage() {
   const navigate = useNavigate();
-  
+  const { isOpen, onOpen, onOpenChange } = useDisclosure();
+  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
+  const [communityList, setCommunityList] = useState<Post[]>([]);
+  const [search, setSearch] = useState(""); // Search Function
+  const [userInformation, setUserInformation] = useState<Record<number, User>>({});
+
   let accessToken = localStorage.getItem("accessToken");
   if (!accessToken) {
     return (
       setTimeout(() => {
         navigate("/signin");
-      }, 1000) 
+      }, 1000)
       &&
       <div className="flex justify-center items-center min-h-screen">
         <div className="text-center">
@@ -59,29 +73,40 @@ export default function CommunityPage() {
     );
   }
 
-  const { isOpen, onOpen, onOpenChange } = useDisclosure();
-  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
-
-  // const [userInformation, setUserInformation] = useState(null);
-
-  // communityList is a state variable
-  // function setCommunityList is the setter function for the state variable
-  // e initial value of the state variable is an empty array []
-  // After getting the api response, call setCommunityList() to set the value of CommunityList
-  const [communityList, setCommunityList] = useState<Post[]>([]);
-
-  // Search Function
-  const [search, setSearch] = useState("");
-  const onSearchChange = (e: { target: { value: SetStateAction<string> } }) => {
-    setSearch(e.target.value);
-  };
-
   const getPosts = () => {
     instance.get(config.serverAddress + "/post").then((res) => {
       setCommunityList(res.data);
     });
   };
 
+  useEffect(() => {
+    getPosts();
+  }, []);
+
+  useEffect(() => {
+    const fetchUserInformation = async (userId: number) => {
+      try {
+        const user = await retrieveUserInformationById(userId);
+        setUserInformation((prevMap) => ({
+          ...prevMap,
+          [userId]: user,
+        }));
+      } catch (error) {
+        console.error(error);
+      }
+    };
+
+    communityList.forEach((post) => {
+      if (!userInformation[post.userId]) {
+        fetchUserInformation(post.userId);
+      }
+    });
+  }, [communityList]);
+
+  const onSearchChange = (e: { target: { value: SetStateAction<string> } }) => {
+    setSearch(e.target.value);
+  };
+
   const searchPosts = () => {
     instance
       .get(config.serverAddress + `/post?search=${search}`)
@@ -90,10 +115,6 @@ export default function CommunityPage() {
       });
   };
 
-  useEffect(() => {
-    getPosts();
-  }, []);
-
   const onSearchKeyDown = (e: { key: string }) => {
     if (e.key === "Enter") {
       searchPosts();
@@ -108,13 +129,6 @@ export default function CommunityPage() {
     getPosts();
   };
 
-  useEffect(() => {
-    instance.get(config.serverAddress + "/post").then((res) => {
-      console.log(res.data);
-      setCommunityList(res.data);
-    });
-  }, []);
-
   const handleDeleteClick = (post: Post) => {
     setSelectedPost(post);
     onOpen();
@@ -168,7 +182,7 @@ export default function CommunityPage() {
                       <div className="flex flex-row justify-between">
                         <div className="flex flex-col">
                           <p className="text-xl font-bold">{post.title}</p>
-                          <p className="text-md text-neutral-500">Adam</p>
+                          <p className="text-md text-neutral-500">{userInformation[post.userId]?.firstName} {userInformation[post.userId]?.lastName}</p>
                         </div>
                         <div className="flex flex-row-reverse justify-center items-center">
                           <Dropdown>
diff --git a/client/src/pages/CreatePostPage.tsx b/client/src/pages/CreatePostPage.tsx
index b23593c..4d7a97e 100644
--- a/client/src/pages/CreatePostPage.tsx
+++ b/client/src/pages/CreatePostPage.tsx
@@ -7,6 +7,8 @@ import NextUIFormikInput from "../components/NextUIFormikInput";
 import NextUIFormikTextarea from "../components/NextUIFormikTextarea";
 import config from "../config";
 import { ArrowUTurnLeftIcon } from "../icons";
+import { useEffect, useState } from "react";
+import { retrieveUserInformation } from "../security/users";
 
 const validationSchema = Yup.object({
   title: Yup.string()
@@ -31,6 +33,7 @@ const validationSchema = Yup.object({
 
 function CreatePostPage() {
   const navigate = useNavigate();
+  const [userId, setUserId] = useState(null);
 
   const initialValues = {
     title: "",
@@ -38,12 +41,28 @@ function CreatePostPage() {
     tags: "",
   };
 
+  useEffect(() => {
+    const getUserInformation = async () => {
+      try {
+        const user = await retrieveUserInformation(); // Get the user ID
+        setUserId(user.id); // Set the user ID in the state
+      } catch (error) {
+        console.error(error);
+      }
+    };
+    getUserInformation();
+  }, []);
+
   const handleSubmit = async (
     values: any,
     { setSubmitting, resetForm, setFieldError }: any
   ) => {
     try {
-      const response = await axios.post(config.serverAddress + "/post", values); // Assuming an API route
+      const postData = {
+        ...values,
+        userId: userId
+      }
+      const response = await axios.post(config.serverAddress + "/post", postData); // Assuming an API route
       if (response.status === 200) {
         console.log("Post created successfully:", response.data);
         resetForm(); // Clear form after successful submit
diff --git a/client/src/pages/PostPage.tsx b/client/src/pages/PostPage.tsx
index bcc7079..152e358 100644
--- a/client/src/pages/PostPage.tsx
+++ b/client/src/pages/PostPage.tsx
@@ -24,6 +24,7 @@ import {
   HandThumbsUpIcon,
   ArrowUTurnLeftIcon,
 } from "../icons";
+import { retrieveUserInformationById } from "../security/usersbyid";
 
 interface Post {
   title: string;
@@ -31,23 +32,49 @@ interface Post {
   content: string;
   tags: string;
   id: number;
+  userId: number;
 }
 
+type User = {
+  id: number;
+  firstName: string;
+  lastName: string;
+};
+
 const PostPage: React.FC = () => {
   const navigate = useNavigate();
   const { id } = useParams<{ id: string }>();
   const [post, setPost] = useState<Post | null>(null);
   const { isOpen, onOpen, onOpenChange } = useDisclosure();
   const [selectedPost, setSelectedPost] = useState<Post | null>(null);
+  const [userInformation, setUserInformation] = useState<Record<number, User>>({});
 
   useEffect(() => {
     if (id) {
-      instance.get(`${config.serverAddress}/post/${id}`).then((res) => {
-        setPost(res.data);
-      });
+      instance.get(`${config.serverAddress}/post/${id}`)
+        .then((res) => setPost(res.data))
+        .catch((error) => console.error("Error fetching post:", error));
     }
   }, [id]);
 
+  useEffect(() => {
+    if (post) {
+      const fetchUserInformation = async () => {
+        try {
+          const user = await retrieveUserInformationById(post.userId);
+          setUserInformation((prevMap) => ({
+            ...prevMap,
+            [post.userId]: user,
+          }));
+        } catch (error) {
+          console.error(error);
+        }
+      };
+
+      fetchUserInformation();
+    }
+  }, [post]);
+
   if (!post) {
     return (
       <div className="flex justify-center min-h-screen">
@@ -104,7 +131,7 @@ const PostPage: React.FC = () => {
                     <div className="flex flex-row justify-between">
                       <div className="flex flex-col">
                         <p className="text-xl font-bold">{post.title}</p>
-                        <p className="text-md text-neutral-500">Adam</p>
+                        <p className="text-md text-neutral-500">{userInformation[post.userId]?.firstName} {userInformation[post.userId]?.lastName}</p>
                       </div>
                       <div className="flex flex-row-reverse justify-center items-center">
                         <Dropdown>
diff --git a/client/src/security/usersbyid.ts b/client/src/security/usersbyid.ts
new file mode 100644
index 0000000..3ccd3d8
--- /dev/null
+++ b/client/src/security/usersbyid.ts
@@ -0,0 +1,17 @@
+import { AxiosError } from "axios";
+import config from "../config";
+import instance from "./http";
+
+export async function retrieveUserInformationById(userId: number) {
+  if (!localStorage.getItem("accessToken")) {
+    throw "No access token";
+  }
+  try {
+    let userInformation = await instance.get(
+      `${config.serverAddress}/users/individual/${userId}`
+    );
+    return userInformation.data;
+  } catch (error) {
+    throw ((error as AxiosError).response?.data as any).message;
+  }
+}
\ No newline at end of file
diff --git a/server/models/Post.js b/server/models/Post.js
index 3f0df11..57712cc 100644
--- a/server/models/Post.js
+++ b/server/models/Post.js
@@ -17,9 +17,14 @@ module.exports = (sequelize, DataTypes) => {
         content: {
             type: DataTypes.TEXT,
             allowNull: false
-        }
+        },
+        userId: {
+            type: DataTypes.UUID,
+            allowNull: false,
+          },
     }, {
         tableName: 'posts'
     });
+    
     return Post;
 }
\ No newline at end of file
diff --git a/server/routes/post.js b/server/routes/post.js
index df5c495..fbe3efd 100644
--- a/server/routes/post.js
+++ b/server/routes/post.js
@@ -1,6 +1,6 @@
 const express = require('express');
 const router = express.Router();
-const { Post } = require('../models');
+const { Post, User } = require('../models');
 const { Op, where } = require("sequelize");
 const yup = require("yup");
 const multer = require("multer");
@@ -56,7 +56,10 @@ router.post("/", async (req, res) => {
 // });
 
 router.get("/", async (req, res) => {
-    let condition = {};
+    let condition = {
+        order: [['createdAt', 'DESC']]
+    };
+
     let search = req.query.search;
     if (search) {
         condition[Op.or] = [
@@ -67,11 +70,7 @@ router.get("/", async (req, res) => {
     // You can add condition for other columns here
     // e.g. condition.columnName = value;
 
-    let list = await Post.findAll({
-        where: condition,
-        // order option takes an array of items. These items are themselves in the form of [column, direction]
-        order: [['createdAt', 'DESC']]
-    });
+    let list = await Post.findAll(condition);
     res.json(list);
 });