You see it when your image strikes light and the light bounces off you then off the mirror to your eyes.
The image is reflected from a reflective object, in this case [your mirror], as a Book is not a mirror, it is not reflected.
All that should be needed is a light source and an object/person/etc. to be reflected. And, of course, a mirror. And functioning eyes to see the reflected image. And a brain willing to accept what is being seen.
When light reflects off an object, it bounces onto the mirror and then back to your eyes, creating an image. The mirror essentially acts as a surface that allows light to reflect off of it, enabling you to see the reflected image.
A reflected image is a mirror image of the original object. It appears to be flipped horizontally along a mirror line. All angles in the reflected image are equal to the corresponding angles in the original object.
The reflection that you see in a mirror is called a virtual image. This virtual image appears to be behind the mirror at the same distance as the object is in front of the mirror. It is formed when light rays reflect off the mirror surface and converge at a point, creating the illusion of an image.
A reflecting telescope "Has a mirror that collects light which is reflected to the eyepiece to show the image".
Mirror reflection works the same way for kids as it does for adults. When a kid stands in front of a mirror, light bounces off them and is reflected back, creating an image. The brain processes this reflected image, allowing the kid to see their own reflection in the mirror.
The image will be reflected left to right. This is why most of us don't like our picture taken, because we look weird to ourselves because we have our left and right halves of our faces reversed. The image you see in a mirror is the opposite of what other people see of you. That image is not reflected left to right.
You can see an image of an object in a plane mirror when light rays bouncing off the object are reflected by the mirror towards your eyes. This creates a virtual image that appears to be the same distance behind the mirror as the object is in front of it. The image in the mirror appears laterally inverted, meaning left and right are reversed.
You can see an image in a mirror because mirrors reflect light. When light from an object strikes the mirror's surface, it bounces off at the same angle it hit, allowing your eyes to receive the reflected light. This creates a reversed image of the object, which you perceive as a reflection in the mirror. The smooth, shiny surface of the mirror enhances this reflection, making it possible for you to see a clear image.
image distance is the distance from the point of incidence on the mirror, the where the image is reflected to.object distance is the distance from the actual object being reflected to the point of incidence on the mirror where it's reflected as an image.
A reflected image in a plane mirror is laterally inverted, meaning it appears reversed from left to right compared to the original object. The image is the same distance behind the mirror as the object is in front of it, and the size of the image is equal to the size of the object.