The poles of a magnet are the places where its magnetic forces are strongest. A bar magnet has a north pole at one end and a south pole at the other. When two magnets are brought close together, each one exerts a force on the other. Two like poles repel each other, and two unlike poles attract each other. These forces act without the magnets touching, so attraction and repulsion between magnetic poles are examples of non-contact forces.
A permanent magnet is always magnetic. It produces its own magnetic field, and it keeps its magnetism. Permanent magnets can attract or repel other magnets.
An induced magnet is a material that becomes a magnet only while it is in a magnetic field. A piece of iron placed near a magnet is an example. Induced magnetism always causes a force of attraction, never repulsion. When the induced magnet is taken out of the magnetic field, it quickly loses most or all of its magnetism.