Back-light - A light source that illuminates translucent material from behind.

Backwall - The panels at the rear of an exhibit.

Backwall Exhibit - An exhibit that is back-to-back with another exhibit or against a building wall.

Baffle - A partition designed to control light, air, sound, or traffic flow.

Banner - A suspended panel used as a decoration or a sign, usually made of fabric or paper for temporary use.

Bill of Lading (B/L) - A document that establishes the terms between a shipper and a transportation company for the transport of goods between specified points for a specified charge. Also see Air Waybill, Inland Bill of Lading, Ocean Bill of Lading, Through Bill of Lading.

Blanket Wrap - Uncrated goods covered with blankets or other protective padding and shipped via van line. Also called Pad Wrap.

Blueprint - A scale drawing of booth space layout, construction, and specifications.

Boneyard - A storage area for empty crates and contractor materials.

Booth - An area made up of one or more standard units of exhibit space.

Booth Area - The amount of floor space assigned to an exhibitor.

Booth Number - A number assigned by show management to identify an exhibitor's floor space.

Booth Personnel - Staff members assigned by an exhibitor to work in an exhibit.

Booth Size - The dimensions of the floor space contracted by an exhibitor. Usually sold in 10' x 10' increments.

Breakpoint - The level at which a discount is given for a volume order.