The center sells books, fine art and prints through its online store.
The center sold the site in 1998 to pay off a deficit of $2.4 million, which left it with no major assets.
The center sells $1.1 billion in goods each year to restaurants and grocers.
The center sells works by some 50 Northeastern craftspeople and holds special exhibits in the summer.
The center sells products made by the state's artisans.
Overall, the center sells about 15,000 tickets a year to its readings, workshops and lectures.
The center does not sell furnishings or technology.
In 1989, the center sold $3.5 million in tickets, according to the city's latest statistics.
Although the event was mostly free, the center sold about 500 tickets for seats in front of the stage for $250 to $1,000.
But if you have the space the centre can sell you the largest tree in the world.