Macro and Close-up photography allows you to explore a whole new world - one that is far more interesting than what we can see with the naked eye.
Although many zoom lens have a macro facility, they generally do not allow you to shoot true macro images which have a reproduction ratio of lifesize (1:1) or greater. To do that you will need either a real macro lens or alternatively, extention tubes or bellows.
A cheap and easy way to shoot macro images is to use a reversing ring - this screws onto the front of your lens and allows you to mount it on the camera back to front so it focuses really close. Some functions such as autofocus and auto exposure will be lost.