Modular display booth assembly that requires no tools

A modular trade show display with interlocking slots,

• comprising a column, where the column comprises four end units, four bridge units and two middle units, where each end unit has an end unit end and two end unit slots, where each bridge unit has a bridge unit top end and a bridge unit bottom end, and where each bridge unit has four bridge unit slots, with two bridge unit slots at the bridge unit top end and two bridge unit slots at the bridge unit bottom end, and where each middle unit has a middle unit top end and a middle unit bottom end, and where each middle unit has four middle unit slots, with two middle unit slots at the middle unit top end and two middle unit slots at the middle unit bottom end, and where each of the end unit slots removably slot into one of the bridge unit slots, and each of the middle unit slots removably slot into at least one of the bridge unit slots,
• where there is at least one bridge shelf connecting at least two bridge units, where the at least one bridge shelf is connected to the at least two bridge units by two brackets, where the at least one bridge shelf has two end sections, and where each of the two sections has two holes in an underside portion, and where each bracket has two prongs that mate with the two holes in the underside portion, and where each bracket has an insert portion that mates with a bridge unit slot,
• where two end units are aligned parallel in a first direction to each other to form a base, and two end units are aligned parallel in the first direction to each other to form a top, and the two middle units are aligned parallel in the first direction for form a middle, and two of the bridge unit are aligned in a second direction to form a lower support, and two of the bridge units are aligned in the second direction to form an upper support, and where the first direction is perpendicular to the second direction, and where the column comprises, in a sequence, from a column bottom to a column top, two end units, two bridge units, two middle units, two bridge units, and two end units, such that all of the end units are parallel to the two middle units, and all four of the bridge units are parallel to the other bridge units, additionally comprising a second column and a backwall, where the backwall is connected to the first column and to the second column, such that there are two columns, where the second column is an identical to the first column, where the second column also comprises four end units, four bridge units and two middle units.