Every country has Definative Stamps. Coil Stamps are the stamps you buy in a roll. Booklet stamps come in small folders. Usually there are 3 to 20 stamps in each book. These stamps have at least one flat side.
Special stamps are the extra stamps the post office prints each year.
The Love stamps and the Christmas stamps are special stamps. Commemorative stamps are usually bigger and more colorfull than the definative stamps. The stamps often honor people or special events. Commemoratives are only available for a short time and only a limited number are printed. You sure can.