Another issue is the glass ceiling, an invisible barrier that
separates women and minorities from top leadership positions. They can look
up through the ceiling, but prevailing attitudes are invisible obstacles to their
own advancement. Research has also suggested the existence of “glass walls”
that serve as invisible barriers to important lateral movement within the organization.
Glass walls bar experience in areas such as line supervision or general
management that would enable women and minorities to advance to senior-level
positions.