diff --git a/chapter/chapter_5.c b/chapter/chapter_5.c
index 105311f..597af83 100644
--- a/chapter/chapter_5.c
+++ b/chapter/chapter_5.c
@@ -47,10 +47,6 @@ static void blesses_initialize (void) {
 	unsigned short int window_width  = (unsigned short int) blesses_window_width;
 	unsigned short int window_height = (unsigned short int) blesses_window_height;
 
-	if (blesses_active == TRUE) {
-		return;
-	}
-
 	blesses_connection = xcb_connect (NULL, NULL);
 
 	fatal_failure (blesses_connection == NULL, "blesses : blesses_initialize : XCB connection is null pointer.");
@@ -76,9 +72,13 @@ static void blesses_initialize (void) {
 
 	xcb_flush (blesses_connection);
 
-	/*blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);*/
-	blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer));
-	blesses_framebuffer     = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer));
+	if (blesses_zoom == TRUE) {
+		blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);
+	} else {
+		blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer));
+	}
+
+	blesses_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer));
 }
 
 static void blesses_deinitialize (void) {
@@ -98,11 +98,12 @@ int blesses_active   = FALSE;
 int blesses_cursor_x = 0;
 int blesses_cursor_y = 0;
 int blesses_signal   = 0;
+int blesses_zoom     = TRUE;
 
 void blesses_configure (void) {
-	blesses_initialize ();
-
 	blesses_active = TRUE;
+
+	blesses_initialize ();
 }
 
 void blesses_synchronize (void) {
@@ -112,13 +113,15 @@ void blesses_synchronize (void) {
 	unsigned short int window_height = (unsigned short int) blesses_window_height;
 
 	xcb_generic_event_t * generic_event = NULL;
-/*
-	for (i = 0; i != blesses_window_width * blesses_window_height; i++) {
-		blesses_framebuffer [i] = blesses_sub_framebuffer [((i / blesses_window_width) / 2) * (blesses_window_width / 2) + (i % blesses_window_width) / 2];
-	}
-*/
-	for (i = 0; i != blesses_window_width * blesses_window_height; i++) {
-		blesses_framebuffer [i] = blesses_sub_framebuffer [i];
+
+	if (blesses_zoom == TRUE) {
+		for (i = 0; i != blesses_window_width * blesses_window_height; i++) {
+			blesses_framebuffer [i] = blesses_sub_framebuffer [((i / blesses_window_width) / 2) * (blesses_window_width / 2) + (i % blesses_window_width) / 2];
+		}
+	} else {
+		for (i = 0; i != blesses_window_width * blesses_window_height; i++) {
+			blesses_framebuffer [i] = blesses_sub_framebuffer [i];
+		}
 	}
 
 	blesses_sub_framebuffer = deallocate (blesses_sub_framebuffer);
@@ -154,9 +157,15 @@ void blesses_synchronize (void) {
 	generic_event = deallocate (generic_event);
 
 	if ((blesses_sub_framebuffer == NULL) && (blesses_framebuffer == NULL)) {
-		/*blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);*/
-		blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer));
-		blesses_framebuffer     = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer));
+		if (blesses_zoom == TRUE) {
+			blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);
+		} else {
+			blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer));
+		}
+
+		// blesses_sub_framebuffer = allocate ((blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer)) / ((blesses_zoom == TRUE) * 4));
+
+		blesses_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer));
 	}
 
 	if (blesses_active == FALSE) {
@@ -167,9 +176,9 @@ void blesses_synchronize (void) {
 void blesses_render_background_colour (int background) {
 	int x, y;
 
-	for (y = 0; y != blesses_window_height/* / 2*/; ++y) {
-		for (x = 0; x != blesses_window_width/* / 2*/; ++x) {
-			blesses_sub_framebuffer [y * (blesses_window_width/* / 2*/) + x] = (int) (0XFF000000 | (unsigned int) background);
+	for (y = 0; y != blesses_window_height / ((blesses_zoom == TRUE) * 2); ++y) {
+		for (x = 0; x != blesses_window_width / ((blesses_zoom == TRUE) * 2); ++x) {
+			blesses_sub_framebuffer [y * (blesses_window_width / ((blesses_zoom == TRUE) * 2)) + x] = (int) (0XFF000000 | (unsigned int) background);
 		}
 	}
 }
@@ -192,8 +201,8 @@ void blesses_render_character (char character, int foreground, int background, i
 
 	int offset;
 
-	if ((x <= -1) || (x >= blesses_window_width/*  / 2*/ - BLESSES_FONT_WIDTH))  return;
-	if ((y <= -1) || (y >= blesses_window_height/* / 2*/ - BLESSES_FONT_HEIGHT)) return;
+	if ((x <= -1) || (x >= blesses_window_width  / ((blesses_zoom == TRUE) * 2) - BLESSES_FONT_WIDTH))  return;
+	if ((y <= -1) || (y >= blesses_window_height / ((blesses_zoom == TRUE) * 2) - BLESSES_FONT_HEIGHT)) return;
 
 	fatal_failure (blesses_sub_framebuffer == NULL,                  "blesses : render_character : Sub framebuffer was not allocated.");
 	fatal_failure (blesses_framebuffer     == NULL,                  "blesses : render_character : Framebuffer was not allocated.");
@@ -207,7 +216,9 @@ void blesses_render_character (char character, int foreground, int background, i
 		int u = offset / BLESSES_FONT_WIDTH + y;
 		int v = offset % BLESSES_FONT_WIDTH + x;
 
-		blesses_sub_framebuffer [u * (blesses_window_width/* / 2*/) + v] = ((font_code [(int) (character - ' ')] >> offset) % 2) ? foreground : background;
+		blesses_sub_framebuffer [u * (blesses_window_width / ((blesses_zoom == TRUE) * 2)) + v] = ((font_code [(int) (character - ' ')] >> offset) % 2)
+		                                                                                        ? foreground
+		                                                                                        : background;
 	}
 }
 
diff --git a/chapter/chapter_5.h b/chapter/chapter_5.h
index d659705..58f9f37 100644
--- a/chapter/chapter_5.h
+++ b/chapter/chapter_5.h
@@ -23,6 +23,7 @@ extern int blesses_active;
 extern int blesses_cursor_x;
 extern int blesses_cursor_y;
 extern int blesses_signal;
+extern int blesses_zoom;
 
 extern void blesses_configure   (void);
 extern void blesses_synchronize (void);