address
airmail
background
blank
blank pages
brown
bureaucracy
business
cargo
communicate
communication
confidential
copy
correspondence
data
delivery
department
detail
dispatch
document
documents
empty
envelop
envelope
file
files
folder
horizontal
information
isolated
letter
mail
mailing
message
notification
object
open
package
packet
pages
paper
paper work
papers
paperwork
post
postage
postal
rectangle
recycled
secret
secure
service
sheet
shipping
single
stationery
texture
white
write