Today there seems to be a different knife available to buy for any different purpose and there are now so many in fact, that books have probably been written about them. However, in this article I would just like to mention one specific type of knife and that is the pocket knife. Even by limiting ourselves to pocket knives, there are still many different ones, some of them are preferred to as EDC (Every Day Carry) knives, OTF (Out the Front) knives or even flick knives but all of these come under the more general heading of a pocket knife. A pocket knife is the description generally used to describe any type of knife which is usually of a standard size, about 4 inches in length and has a blade which retracts into its handle when not in use. As these knives are relatively small and their blades retract into the handle when not in use, allowing no sharp blade to protrude, they are very convenient for carrying in your pocket and so hence their name. At any given time on any given day, at work, at a social event or even just out on the street, we come across different situations where a knife would be very handy and so in order to be prepared for any of these occurrences, many people like to carry with them a pocket knife at all times. It could never be said that a pocket knife is the ideal knife for any purpose but it is usually sufficient to handle many tasks, even if the task is done not to a perfect standard. Obviously however, if you are planning a trip into a wooded area, you may want to consider carrying a larger knife as well but most people, even if they do carry a larger knife into the woods, still carry their pocket knife as well as even in the woods, the versatility of the pocket knife is often a blessing. So, if all these relatively small knives that have blades that retract into their handles are called pocket knives, you must be wondering why there are different names for some of them and not others. An OTF knife refers to a pocket knife which has the blade shoot out parallel with the handle which, in some instances can be advantageous. An EDC knife is often considered to be a pocket knife which has that little extra, perhaps is stronger or more durable. If you are someone that is more concerned with having a knife in case an end of the world scenario may occur at any time, you may want to consider one of the knives labeled an EDC knife. However, if you are like most of us and would just like to have a knife available for any odd situation that may arise, any regular pocket knife will usually suffice. Basically with pocket knives, the best thing to do is choose one which you are happiest with, one that you think may be able to help you out in your own situations.