From someting I prepared long ago, easily confused glyphs, depending on the typeface (if you aren't sure what one of the characters is ... perhaps try a differe

From someting I prepared long ago, easily confused glyphs, depending on the typeface (if you aren't sure what one of the characters is ... perhaps try a different typeface?): * b69B80Oo * 1Il| * ij * 5S * 9gq * co * rn m * cl d * vv w * ., * :; * `' * ''" * ' and (curved/smart/curly single quotes) * " and (curved/smart/curly double quotes) * ~- * )]} * u and (mu) * v and (nu) * Capital vs. lowercase letters. wW xX zZ vV uU cC sS Note that many of the above are easier to distinguish because they are next to each other and you are conciously examining them. You need to read your code and know a character is a colon and not a semicolon without even thinking about it.