The hobby of collecting includes seeking, locating, acquiring, organizing, cataloging, displaying, storing, and maintaining items that are of interest to an individual collector. Collections differ in
"The Philatelist" (1929) by François Barraud
Stamp album used for collecting postage stamps
Numismatic and philatelic collectable specimens on display at an exhibition in India
Hoarding is the act of engaging in excessive acquisition of items that are not needed or for which no space is available. Hoarding can also be defined as collecting and holding otherwise scarce items.
Collecting
…Ephemera Hoarding Scientific collection…
Tape hoarding
An anti-hoarding, pro-rationing poster from the United States in World War II