Reincarnation is simply means to be reborn in a different body or in a different species. There are actually lots of things attributed to reincarnation which is mostly a spiritual or metaphysical concept. Some cultures, religion and countries also believe in reincarnation as they always claim that the death of their loved ones will surely come back in another body. This same claim is also being adopted by some atheist and some other people who might have experienced or seen such event occur in their life time.
To answer your question, I actually don't believe in reincarnation. The fact is that when someone dies, the person soul had already left this world into another spiritual realm. The concept of reincarnation may seem to occur as a result of the work of the devil and his soldiers. The major thing they do is that the devilish spirit takes up the body of the dead person by using the body to cause different form of grief or evil to mankind mostly in another region. This is why you hear some people telling you that they saw someone who is already dead at a specific place living a healthy life at another location. This are absolutely false statement because the soul of the dead body has already gone to another world to face their own deeds either good or bad and they shall be judged accordingly.
In conclusion, I don't actually believe in the concept of reincarnation but I surely believe that when someone dies, the soul of the dead person travels to another world for their judgement and such soul can never come back into this world because it has no space here in this world after it has left the world through death. The main reason you experience the reincarnation is as a result of the deception of the devils who takes up the body of the dead person even when the real owner of the body doesn't know about this.
Thanks for reading and I hope this helps.