Human hair comes with all sorts of colors, textures and shapes. African hair is more coiled and dry; Asian hair is straighter and thicker; and Caucasian hair is somewhere in between with around 45% having straight hair, 40% having wavy hair, and 15% having curly hair. These variations are determined by many genes and combination with environmental factors (and not in the least by hair stylists!). There is great truth to the quote “you can’t tell a book by its cover.”