To provide a rear-view mirror for solving such problems that, when a person carries out work that the person does not want others to see, with a personal computer, another person stands at his/her back before the person notices and looks the screen, or the superior looks the screen while passing behind and checks the work content, and therefore, when using the personal computer, the person works constantly looking over his/her shoulders for closing the document at any time.

A hemispherical mirror is used to resemble flower by attaching petals therearound so as not to look like the mirror at a glance. The mirror is attached to the upper part of a personal computer display by clamping it between a leaf part and a stem part that are formed in the lower part of the flower such that the user can check the back without being noticed by the others. The rear-view mirror for a personal computer has the aforementioned configuration.