Stamp collecting is the collecting of postage stamps ,and its additions
How can you find rare postage stamps to collect?
history of postal service of the United States began with the delivery of stampless letters, whose cost was borne by the receiving person, later also encompassed pre-paid letters carried by private mail carriers and provisional post offices, 
I did not know there were stampless letters where receiver paid.  When were stamps where buyer paid first started?
depicted on them, ranging from ships, horses, and birds to kings, queens and presidents.
Sales of postage stamps are an important source of income for some countries whose stamp issues may exceed their postal needs, but have designs that appeal to many stamp collectors.
History.
It has been suggested that John Bourke, Receiver General of Stamp Dues in Ireland, was the first collector. In 1774 he assembled a book of the existing embossed revenue stamps, ranging in value from 6 pounds to half a penny
Postage stamps and postal history of the United States
The history of postal service of the United States began with the delivery of stampless letters, whose cost was borne by the receiving person, later also encompassed pre-paid letters carried by private mail carriers and provisional post offices, and culminated in a system of universal prepayment that required all letters to bear nationally issued adhesive postage stamps.
In the earliest days, ship captains arriving in port with stampless mail would advertise in the local newspaper names of those having mail and for