diff --git a/font-showcase.org b/font-showcase.org
index 2698239..2ac466d 100644
--- a/font-showcase.org
+++ b/font-showcase.org
@@ -27,6 +27,9 @@ ABC.DEF.GHI.JKL.MNO.PQRS.TUV.WXYZ abc.def.ghi.jkl.mno.pqrs.tuv.wxyz
 1234567890 ,._-+= >< «¯-¬_» ~–÷+× {*}[]()<>`+-=$/#_%^@\&|~?'" !,.;:
 E3CGQ g9q¶ uvw ſßðþ ΓΔΛαδιλμξπτχ∂ ЖЗКУЯжзклмнруфчьыя <= != == => ->
 #+end_example
+** Legibility test
+Can I tell the difference between: 1,i,I,l,L,|
+How about: 0,O,o
 * Coding ligatures
 #+begin_example
 -<< -< -<- <-- <--- <<- <- -> ->> --> ---> ->- >- >>-