Who is The Spirit Level?
A spirit level is an instrument used to determine whether a surface is exactly horizontal or vertical. Spirit level can also refer to: Engineer's spirit level, a specialised instrument used to level machinery Spirit Level, Australian record label The Spirit Level (poetry collection), 1996 poetry collection by Seamus Heaney The Spirit Level: Why More Equal Societies Almost Always Do Better, 2009 book by Wilkinson and Pickett Spirit levelling, a surveying technique
