A postcard is made of paper that is thick and it may be a cardboard that is thin and it has mailing or writing and does not need to be placed in a envelop and the shape may actually vary but there are exceptions are made of wood and thin wood and there are some which are made of copper.
There are posts cards which have stamps which are pre-printed and they are called postal cards and the post cards are usually printed by companies which are private or by organizations and individuals and the post card are provided by postal authorities which are commonly owned by governments.
Postcards have pictures on them that allows and encourages many people to send numerous images to countries which are far away and many countries allow the postcards to be mailed to individuals and the images may be those of the countries famous tourist sites.
Post cards which have images of nudity or sexual references are not allowed in many countries and even images of partial nudity and classical paintings and statuary and there are many types of postcards which include the applique postcards which is made of some metal or cloth and other embellishments which are attached to them,
Art nouveau postcards has characters of flowery symbols and flowing lines which depicts some impressions of representation of art and there is artists signed postcards which have artwork of an artist’s signature and the art is unique and there is bas relief postcards which have surfaces which are raised and this gives an appearance of papier mache.
There is the bug letter postcards which depicts the name of a location in big letters but they do noit have pictures on them while the composites postcards are individual cards which are put together in some group and they form a large picture and some people call them installment cards and the court cards are usually found in Britain and the divided back postcards have a back that is divided in two sections and has a message one side and the other side is meant for writing address and theses kind of post cards was first made in 1902.
The vignette post cards which consists of a design that has a whole picture on one side but has space on which to write a message on the other side and the write-away postcards have an opening sentence written on it and the sentence is not complete and one needs to complete it and it is possible make you own postcards.