Maybe the mask wasn't a costume mask, but it was a mask to make you seem happy, or seem cool, or anything that made you feel like something than you are not normally. Chances are you have. Trying to fit in with the crowd, a mask is used to obtain the things we cannot reach on our own. Masks are especially common today because of the pressures to belong to the 'in'; group, or the pressures to succeed. Books, using masks, commonly show the many connotations of masks. They are used to find out what people are for real, on the inside of the mask.