diff --git a/models/quiz.ts b/models/quiz.ts
deleted file mode 100644
index 2885188..0000000
--- a/models/quiz.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-export type Question = {
-    type: 'INPUT' | 'MCQ',
-    text: string,
-    choices?: Array<string>,
-    correctAnswer?: string,
-    durationInSeconds: number,
-    marks: number,
-}
-
-export type Quiz = {
-    questions: Array<Question>,
-    minScoreToPass: number,
-    totalDuration?: number, // Military time 060 is 6 AM, 1300 is 1 PM
-}
-
-export type Assignment = {
-    heading: string,
-    description: string, //Rich text
-    deadlineDate: string,
-    minimumCriteria: string,
-}
\ No newline at end of file
diff --git a/models/user.ts b/models/user.ts
index 8d0e7f5..33d1b02 100644
--- a/models/user.ts
+++ b/models/user.ts
@@ -1,32 +1,50 @@
-export type skillInformation = {
+export type IWord = {
     name: string,
-    category: 'FRONT_END' | 'BACKEND' | 'DATABASE' | 'BENIFICIAL'
-};
+    pronounciation: {
+        text: string,
+        audio: string, // URL for the audio file
+    },
+    similarWords: Array<IWord>,
+    gramaticalDetails: Array<{
+        type: 'NOUN' | 'PRONOUN' | 'ADJECTIVE' | 'VERB' | 'ADVERB' | 'PREPOSITION' | 'CONJUNCTION' | 'INTERJECTION',
+        description: string,
+        examples: Array<string>,
+    }>
+}
+
+export type IShelf = {
+    name: string,
+    description: string,
+    viewType: 'PUBLIC' | 'PRIVATE' | 'FRIENDS' | 'FOLLOWERS',
+    isArchived: boolean,
+    addedWords: Array<{
+        word: IWord,
+        notes: Array<string>,
+        isFavourite: boolean,
+        nextRevisionDateTime: Date,
+        revisionHistory : Array<{
+            day: Date,
+            wasRecallSuccessful: boolean,  
+        }>
+    }>
+}
+
+export type ICategory = {
+    name: string,
+    icon: string,
+    shelves: Array<IShelf>,
+    isArchived: boolean,
+}
 
 export type IUser = {
+    // For Auth purposes
     _id: string,
     name: string,
     email: string,
     password: string,
     isVerified: boolean,
     otp: number,
-    userType: 'ADMIN' | 'MODERATOR' | 'APPLICANT',
-    skillSet?: Array<skillInformation>,
-    progress?: Array<{
-        roundType: 'PRELIMINARY' | 'TECHNICAL_INTERVIEW' | 'ASSIGNMENT' | 'FINAL_INTERVIEW',
-        score: number,
-        status: undefined | 'PASS' | 'FAIL' | 'PAUSED' | 'IN_PROGRESS' | 'REVIEW',
-        answers?: Array<string>,
-        preferredInterviewSlot?: Date,
-    }>,
-    userDocuments?: Array<{
-        type: 'ID_PROOF' | 'CERTIFICATES' | 'EXPERIENCE_LETTER' | 'PAYSLIPS',
-        status: undefined | 'UPLOADED' | 'VERIFYING' | 'VERIFIED' | 'FAILED',
-        comments?: Array<{
-            userName: string,
-            comment: string,
-            timeStamps: Date,
-        }>,
-        document: File,
-    }>,
+
+    // Other records
+    categories: Array<ICategory>
 }
\ No newline at end of file