diff --git a/test.py b/test.py
index 3703e2d..14dd32d 100644
--- a/test.py
+++ b/test.py
@@ -39,4 +39,44 @@ color(LETTER_COLOR)
 pensize(LETTER_SIZE)
 letter_function(UNIT)
 
+def draw_letter_d(unit):
+    penup()
+    forward(unit)
+    pendown()
+    forward(unit*4)
+    left(45)
+    forward(unit * sqrt(2) *2)
+    left(45)
+    forward(unit *4)
+    left(45)
+    forward(unit * sqrt(2) *2)
+    left(45)
+    forward(unit *4)
+    left(90)
+    forward(unit *8)
+    penup()
+    left(90)
+    forward(unit *2)
+    left(90)
+    forward(unit *2)
+    right(90)
+    pendown()
+    forward(unit)
+    left(45)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit *2)
+    left(45)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit)
+    left(90)
+    forward(unit *4)
+    penup()
+    forward(unit *2)
+    right(90)
+    forward(unit *3)
+    right(180)
+
+
 input()
diff --git a/typeface.py b/typeface.py
index b966bef..941387a 100644
--- a/typeface.py
+++ b/typeface.py
@@ -13,16 +13,178 @@ from turtle import *
 from math import sqrt
 
 def draw_letter_a(unit):
-    pass
+    penup()
+    forward(unit * 1)
+    pendown()
+    left(90)
+    forward(unit * 6)
+    right(45)
+    forward(unit * sqrt(2)* 2)
+    right(45)
+    forward(unit * 2)
+    right(45)
+    forward(unit * sqrt(2)* 2)
+    right(45)
+    forward(unit * 6)
+    right(90)
+    forward(unit * 2)
+    right(90)
+    forward(unit * 3) 
+    left(90)
+    forward(unit * 2)
+    penup()
+    right(90)
+    forward(unit *1)
+    pendown()
+    forward(unit*1)
+    right(45)
+    forward(unit * sqrt(2))
+    right(90)
+    forward(unit * sqrt(2))
+    right(45)
+    forward(unit *1)
+    right(90)
+    forward(unit *2)
+    penup()
+    left(90)
+    forward(unit *1)
+    pendown()
+    forward(unit * 3)
+    right(90)
+    forward(unit * 2) 
+    penup()
+    forward(unit *1)
+    right(180)
+    pendown
+    
 
 def draw_letter_b(unit):
-    pass
+    penup()
+    forward(unit *1)
+    pendown()
+    forward(unit *4)
+    left(45)
+    forward(unit * sqrt(2) * 2)
+    left(90)
+    forward(unit * sqrt(2) *2)
+    right(90)
+    forward(unit *sqrt(2) *2)
+    left(90)
+    forward(unit * sqrt(2) *2)
+    left(45)
+    forward(unit *4)
+    left(90)
+    forward(unit *8)
+    penup()
+    left(90)
+    forward(unit *2)
+    left(90)
+    forward(unit*1)
+    right(90)
+    pendown()
+    forward(unit *1)
+    left(45)
+    forward(unit * sqrt(2))
+    left(90)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit)
+    left(90)
+    forward(unit * 2)
+    left(180)
+    penup()
+    forward(unit *4)
+    pendown()
+    right(90)
+    forward(unit *1)
+    left(45)
+    forward(unit * sqrt(2))
+    left(90)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit)
+    left(90)
+    forward(unit * 2)
+    penup()
+    forward(unit *5)
+    right(90)
+    forward(unit *3)
+    left(180)
+
 
 def draw_letter_c(unit):
-    pass
+    penup()
+    forward(unit*3)
+    pendown()
+    left(135)
+    forward(unit * sqrt(2) * 2)
+    right(45)
+    forward(unit *4)
+    right(45)
+    forward(unit * sqrt(2) * 2)
+    right(45)
+    forward(unit *4)
+    right(90)
+    forward(unit * 2)
+    right(90)
+    forward(unit *3)
+    left(45)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit *2)
+    left(45)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit *3)
+    right(90)
+    forward(unit *2)
+    right(90)
+    forward(unit *4)
+    penup()
+    forward(unit *3)
+    right(180)
+
 
 def draw_letter_d(unit):
-    pass
+    penup()
+    forward(unit)
+    pendown()
+    forward(unit*4)
+    left(45)
+    forward(unit * sqrt(2) *2)
+    left(45)
+    forward(unit *4)
+    left(45)
+    forward(unit * sqrt(2) *2)
+    left(45)
+    forward(unit *4)
+    left(90)
+    forward(unit *8)
+    penup()
+    left(90)
+    forward(unit *2)
+    left(90)
+    forward(unit *2)
+    right(90)
+    pendown()
+    forward(unit)
+    left(45)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit *2)
+    left(45)
+    forward(unit * sqrt(2))
+    left(45)
+    forward(unit)
+    left(90)
+    forward(unit *4)
+    penup()
+    forward(unit *2)
+    right(90)
+    forward(unit *3)
+    right(180)
+
+
 
 def draw_letter_e(unit):
     pass