diff --git a/main.py b/main.py
index 1ba7330..ac03ff7 100644
--- a/main.py
+++ b/main.py
@@ -2,10 +2,16 @@
 import sys
 import json
 import customtkinter as ctk
+from pygame import mixer
 
 
 ctk.set_appearance_mode("dark")
 
+mixer.init()
+beep = mixer.Sound('beep.mp3')
+beep.set_volume(0.05)
+
+
 def save_theme(theme):
     config = load_config()
     config['theme'] = theme
@@ -30,6 +36,25 @@ def reload_app():
     os.execl(sys.executable, sys.executable, *sys.argv)
 
 
+class StatsFrame(ctk.CTkFrame):
+    def __init__(self, master):
+        super().__init__(master)
+
+        self.total_hours_var = ctk.StringVar(value="Total Hours Studied: 0")
+        self.total_hours_label = ctk.CTkLabel(self, textvariable=self.total_hours_var, font=("Helvetica", 18, "bold"))
+        self.total_hours_label.pack(pady=40)
+
+        self.load_stats()
+
+    def load_stats(self):
+        # TODO: Implement
+        self.total_hours_var.set("Total Hours Studied: ...")
+
+    def update_stats(self, new_data):
+        # TODO: Implement
+        pass
+
+
 class SettingsFrame(ctk.CTkFrame):
     def __init__(self, master):
         super().__init__(master)
@@ -49,12 +74,14 @@ def change_theme(self, theme):
         save_theme(theme)
         reload_app()
 
-
 class PomodoroFrame(ctk.CTkFrame):
     def __init__(self, master):
         super().__init__(master)
+        self.data_file = 'data.json'
+        self.pomodoro_time = 25 * 60
 
-        self.timer_display = ctk.CTkLabel(self, text="25:00", font=("Helvetica", 58))
+        minutes, seconds = divmod(self.pomodoro_time, 60)
+        self.timer_display = ctk.CTkLabel(self, text=f"{minutes:02d}:{seconds:02d}", font=("Helvetica", 58))
         self.timer_display.pack(pady=40)
 
         self.start_button = ctk.CTkButton(self, text="START", fg_color="transparent",
@@ -62,23 +89,57 @@ def __init__(self, master):
         self.start_button.pack()
 
         self.running = False
-        self.remaining_time = 25 * 60
+        self.remaining_time = self.pomodoro_time
 
     def start_timer(self):
-        self.running = True if self.running is False else False
+        self.running = not self.running
         btn_text = "PAUSE" if self.running else "START"
         self.start_button.configure(text=btn_text)
-        self.update_timer()
+        if self.running:
+            self.update_timer()
 
     def update_timer(self):
         if self.running and self.remaining_time > 0:
             self.remaining_time -= 1
+            self.track_second()
             minutes, seconds = divmod(self.remaining_time, 60)
             self.timer_display.configure(text=f"{minutes:02d}:{seconds:02d}")
             self.after(1000, self.update_timer)
+        elif self.remaining_time == 0:
+            self.running = False
+            self.session_ended()
         else:
             self.running = False
 
+    def track_second(self):
+        if os.path.exists(self.data_file):
+            with open(self.data_file, 'r') as file:
+                data = json.load(file)
+                data['total_seconds_studied'] += 1
+        else:
+            data = {'total_seconds_studied': 0}
+        
+        with open(self.data_file, 'w') as file:
+            json.dump(data, file, indent=4)
+    
+    def session_ended(self):
+        # Reset the timer
+        self.remaining_time = self.pomodoro_time
+        minutes, seconds = divmod(self.remaining_time, 60)
+        self.timer_display.configure(text=f"{minutes:02d}:{seconds:02d}")
+        self.start_button.configure(text="START")
+
+        # Update the total pomodoro sessions done
+        if os.path.exists(self.data_file):
+            with open(self.data_file, 'r') as file:
+                data = json.load(file)
+                data['total_pomodoro_sessions_done'] = data.get('total_pomodoro_sessions_done', 0) + 1
+
+            with open(self.data_file, 'w') as file:
+                json.dump(data, file, indent=4)
+
+        beep.play()
+
 
 class TabView(ctk.CTkTabview):
     def __init__(self, master, **kwargs):
@@ -86,6 +147,7 @@ def __init__(self, master, **kwargs):
 
         self.add("Main")
         self.add("Settings")
+        self.add("Stats")
 
         self.main_frame = PomodoroFrame(self.tab("Main"))
         self.main_frame.pack()
@@ -93,6 +155,9 @@ def __init__(self, master, **kwargs):
         self.settings_frame = SettingsFrame(self.tab("Settings"))
         self.settings_frame.pack()
 
+        self.stats_frame = StatsFrame(self.tab("Stats"))
+        self.stats_frame.pack()
+
 
 class PomodoroApp(ctk.CTk):
     WIDTH = 350