A marker pen, marking pen, felt-tip pen, flow or marker, is a pen which has its own ink-source, and usually a tip made of a porous, pressed fibres; such as felt or nylon.
below is a list/full analysis of different types of marker pens;
Permanent marker
Permanent markers are porous pens that can write on surfaces such as plastic, wood, metal, and stone. The ink is generally resistant to rubbing and water, and can last for many years. Depending on the surface and the marker used, however, the marks can often be removed with either vigorous scrubbing or chemicals such as acetone.
Highlighters
Highlighters are permanent markers used to highlight and cover over existing writing while still leaving the writing readable.
Non-permanent marker
A non-permanent marker, uses an erasable ink—an ink that adheres to the writing surface without binding or being absorbed by it—for temporary writing with overhead projectors, whiteboards, and the like. They may also be used by children when adults want to be able to clean up after them. The erasable ink does not contain the toxic chemical compounds xylene and/or toluene, unlike permanent markers.
Wet erase markers are another version that are used on overhead projectors, signboards, whiteboards, and other non-porous surfaces.
Security marker
Special "security" markers, with fluorescent but otherwise invisible inks, are used for marking valuables in case of burglary. The owner of a stolen, but recovered item can be determined by using ultraviolet light to make the writing visible.
Election marker
Marker pens with election ink (an indelible dye and often a photosensitive agent such as silver nitrate) used to mark the finger, and especially the cuticle, of voters in elections in order to prevent electoral fraud such as double voting. The stain stays visible for a week or two and may also be used to assist in vaccinations in developing world communities and refugee camps.
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