To have the best of anything in this world, it is always very important to using the grading system available for that particular item to find out its value or how much its value.
This applies for coins too and a coin collector especially should do coin grading.
The importance of doing this is just to be sure that you can find a market for your coins in case you decide to sell them and they won't be considered obsolete.
Coin grading systems differ from county to country but nevertheless, a coin dealer should be able to assign coins their proper value after inspection to ensure that they are in the right condition.
Knowledge about this grading may take many years to acquire and to speed up the process, one can refer to certain books that offer excellent tips on how to go about it.
Once you have read the theoretical bit, you could try it practically with the few coins that you might be having.
This way you get to understand the various values assigned to different coins especially in reference to the letters and symbols used in grading.
Coins are categorized from the best to the worst.
Uncirculated ones are given a rating of Mint State.
These are the ones with the best rating.
A few of the symbols used are as follows; Unc means uncirculated or Mint State and they are as good as new.
AU means Almost Circulated, XF means extremely fine with just a light dusting of wear.
From these coin grading symbols, you will be able to know their coin value.